1164 Species in Genus Rhododendron

Rhododendrons: A Floral Love Affair

My name is Ferb Vu, and I have a confession. I’m utterly captivated by rhododendrons. These diverse and stunning shrubs, with their vibrant blooms and lush foliage, have completely stolen my heart. From the moment I first laid eyes on a hillside ablaze with their colorful blossoms, I was hooked.

Rhododendrons, belonging to the genus Rhododendron, are a vast and varied group. In fact, it’s one of the largest genera in the plant kingdom, boasting over 1,000 species. They belong to the Ericaceae family, which also includes other favorites like azaleas, blueberries, and cranberries. But for me, nothing quite compares to the majestic rhododendron.  

Do deer eat rhododendron?

I remember when I first planted rhododendrons in my garden, I was worried about whether deer would be attracted to them. Unfortunately, I learned the hard way that they do indeed enjoy nibbling on rhododendron leaves. One morning, I woke up to find several of my plants partially eaten, and after some investigation, I discovered deer tracks nearby. It was quite disappointing, especially after all the effort I had put into nurturing those plants. Since then, I’ve had to take extra precautions to protect my rhododendrons from hungry deer, such as using deer repellents and fencing.

How to propagate a rhododendron?

Propagating rhododendrons is a process I’ve found both rewarding and fascinating. One method I’ve had success with is propagation by stem cuttings. I start by selecting healthy, non-flowering stems from the parent plant during the early morning when the plant is most hydrated. Then, I carefully cut a 4-6 inch section of the stem, making sure it includes a few leaf nodes. After removing any lower leaves, I dip the cut end in rooting hormone to encourage root growth. Next, I plant the cuttings in a well-draining soil mix, ensuring they’re kept consistently moist but not waterlogged. I’ve found that placing a plastic bag over the pot helps to maintain humidity and encourages root development. With patience and proper care, these cuttings eventually develop roots and can be transplanted into larger pots or directly into the garden. It’s a rewarding process to watch these new plants thrive and grow.

How long does rhododendron bloom?

The blooming period of rhododendrons is one of the highlights of my gardening year. In my experience, the duration of their bloom can vary depending on factors like the rhododendron variety, climate, and local growing conditions. Generally, though, I’ve found that rhododendron blooms can last anywhere from two to six weeks. Some varieties may have a shorter bloom time, while others, especially those with multiple flower trusses, can extend their display for a longer period. It’s always a breathtaking sight when my rhododendrons burst into bloom, and I try to savor every moment of their colorful display while it lasts.

How fast do rhododendron grow?

The growth rate of rhododendrons can vary depending on several factors, including the specific variety, environmental conditions, and care provided. In my experience, rhododendrons are generally considered to be moderate to slow-growing plants. When I first planted rhododendrons in my garden, I noticed that they took some time to establish themselves, especially during the first few years. However, once they became established and found their footing, their growth seemed to accelerate somewhat. On average, I’ve observed that rhododendrons can grow anywhere from 1 to 2 feet in height per year under optimal conditions. However, this growth rate may slow down as the plant matures. Regular watering, proper soil preparation, and occasional fertilization have helped me encourage healthy growth in my rhododendrons over time.

Will rhododendron cuttings root in water?

In my experience, rhododendron cuttings typically don’t root well in water alone. Rhododendrons prefer a slightly acidic, well-draining soil mix for root development. When I’ve attempted to propagate rhododendrons from cuttings, I’ve found that using a rooting hormone and planting them directly in a soil mix yields better results. However, some gardeners have reported success with rooting rhododendron cuttings in water if they use specialized techniques such as mist propagation or aeroponics. Personally, I’ve found that soil propagation tends to be more reliable and results in healthier root systems for my rhododendron cuttings.

Can rhododendron grow in shade?

Rhododendrons are renowned for their ability to thrive in shady conditions, which is one of the reasons I love them for my garden. In my experience, they prefer dappled shade or partial shade, where they receive filtered sunlight or a few hours of direct sunlight each day. I’ve found that planting them under the canopy of taller trees or on the north side of buildings provides the ideal conditions for their growth. In these shady spots, rhododendrons tend to produce lush foliage and vibrant blooms, enhancing the beauty of my garden while also providing habitat for wildlife. However, it’s important to ensure that they receive adequate moisture and good air circulation to prevent issues like root rot or fungal diseases. Overall, I’ve had great success growing rhododendrons in shaded areas of my garden, and they continue to thrive year after year.

How to pronounce rhododendron?

The pronunciation of “rhododendron” is typically “roh-duh-DEN-dron.” The emphasis is usually placed on the second syllable, “DEN.” It’s a beautiful word for a beautiful plant!

Is rhododendron poisonous to dogs?

Yes, rhododendrons are indeed toxic to dogs. As a dog owner myself, I take great care to ensure that my furry friends stay away from these plants. Rhododendrons contain toxins called grayanotoxins, which can cause a range of symptoms in dogs if ingested, including vomiting, diarrhea, drooling, abdominal pain, weakness, tremors, and even more severe neurological effects in some cases. It’s essential to keep an eye on pets when they’re around rhododendrons and to prevent them from nibbling on any part of the plant. If I ever suspect that my dog has ingested any part of a rhododendron, I seek veterinary attention immediately to ensure their safety and well-being.

Why are my rhododendron leaves turning yellow?

When I noticed my rhododendron leaves turning yellow, it was quite concerning, but I learned a few common reasons that might be causing it. One possibility is that the plant is not getting enough water, which can stress it out and lead to yellowing leaves. Another factor could be improper soil pH or nutrient deficiencies, particularly iron or magnesium, which are essential for healthy leaf color. In my experience, excessive sunlight or intense heat can also cause rhododendron leaves to yellow, as they prefer partial shade and cooler temperatures. Additionally, diseases such as root rot or pests like lace bugs can contribute to leaf discoloration. I found that closely examining the plant and its growing conditions helped me identify and address the underlying issue, whether it’s adjusting watering practices, improving soil conditions, or treating for pests or diseases.

How deep are rhododendron roots?

Rhododendron roots typically grow relatively shallow, extending outwards rather than deeply into the soil. In my experience, the root system of a rhododendron tends to be concentrated in the top 12 to 24 inches of soil, with some larger roots potentially reaching deeper depths. These shallow roots are well-adapted for absorbing nutrients and moisture from the upper layers of soil, where organic matter and moisture are more abundant. When planting or caring for rhododendrons, I make sure to provide them with a well-draining soil mix and avoid disturbing their shallow root system to promote healthy growth and development.

How to grow rhododendron from cuttings?

Growing rhododendrons from cuttings can be a rewarding way to propagate new plants. Here’s a step-by-step guide based on my experience:

1. Select Healthy Cuttings: Choose healthy, non-flowering stems from the parent plant. Opt for semi-hardwood cuttings, typically taken in mid to late summer. Cuttings should be around 4-6 inches long and include several leaf nodes.
2. Prepare Cuttings: Trim the cutting just below a leaf node using sharp, clean pruners. Remove any lower leaves to expose a few nodes along the stem.
3. Apply Rooting Hormone: Dip the cut end of each cutting into a rooting hormone powder or gel to promote root development. Be sure to follow the instructions on the rooting hormone packaging.
4. Prepare Planting Medium: Use a well-draining rooting medium such as a mix of perlite and peat moss, or a specialized rooting mix. Fill small pots or trays with the planting medium.
5. Plant Cuttings: Insert the cuttings into the planting medium, ensuring that at least one node is buried beneath the surface. Firm the medium gently around the cutting to provide stability.
6. Provide Ideal Conditions: Place the pots or trays in a bright, indirect light location, avoiding direct sunlight. Maintain a consistently moist but not waterlogged environment by watering gently as needed.
7. Encourage Root Growth: To help maintain humidity around the cuttings, you can cover them with a clear plastic bag or place them in a propagator. This helps create a mini greenhouse effect and promotes root growth.
8. Monitor and Care: Check the cuttings regularly for signs of growth and ensure the soil remains moist. Avoid overwatering, as excessive moisture can lead to rot.
9. Transplanting: Once the cuttings have developed roots (typically several weeks to a few months), carefully transplant them into individual pots filled with a well-draining potting mix. Continue to provide appropriate care as they establish themselves.
10. Harden Off: Before planting the new rhododendron plants outdoors, gradually acclimate them to outdoor conditions by exposing them to increasing amounts of sunlight and outdoor temperatures over a period of time.

By following these steps and providing proper care, you can successfully grow rhododendrons from cuttings and enjoy the satisfaction of propagating new plants for your garden.

How long do rhododendron bloom?

The duration of rhododendron blooms can vary depending on factors such as the specific variety of rhododendron, environmental conditions, and climate. In my experience, rhododendrons typically bloom for a few weeks to several weeks, usually in late spring to early summer. Some varieties may have a shorter blooming period, while others may continue to produce flowers for a longer duration. I’ve found that optimal growing conditions, such as adequate sunlight, moisture, and proper soil pH, can help prolong the blooming period of rhododendrons. It’s always a joy to witness the vibrant and colorful display of rhododendron blooms in my garden, and I make sure to appreciate their beauty while they last.

How to fertilize rhododendron?

Fertilizing rhododendrons is important for promoting healthy growth and vibrant blooms. Based on my experience, here’s how I typically fertilize my rhododendrons:

1. Choose the Right Fertilizer: Select a fertilizer specifically formulated for acid-loving plants like rhododendrons and azaleas. Look for a balanced, slow-release fertilizer designed for acid-loving plants, with a formulation such as 10-10-10 or 12-6-6.
2. Timing: Fertilize rhododendrons in the early spring, just as new growth begins. Avoid fertilizing later in the growing season, as this can stimulate new growth that may not have time to harden off before winter.
3. Application: Apply the fertilizer evenly around the base of the plant, taking care not to allow it to come into direct contact with the stems or foliage. Use the recommended amount of fertilizer according to the instructions on the packaging.
4. Watering: After applying the fertilizer, water the rhododendron thoroughly to help the nutrients penetrate the soil and reach the roots.
5. Mulch: Consider applying a layer of organic mulch, such as pine bark or wood chips, around the base of the plant after fertilizing. Mulch helps conserve moisture, suppress weeds, and gradually release nutrients into the soil as it decomposes.
6. Monitor: Keep an eye on the rhododendron for any signs of nutrient deficiencies, such as yellowing leaves or poor growth. If needed, you can apply a foliar spray of liquid fertilizer during the growing season to provide additional nutrients.
7. Avoid Over-Fertilizing: Be cautious not to over-fertilize rhododendrons, as this can lead to salt buildup in the soil and cause root damage. Follow the recommended dosage and frequency of fertilization to avoid these issues.

By following these steps and providing the appropriate type and timing of fertilizer, you can help ensure that your rhododendrons receive the nutrients they need to thrive and produce stunning blooms.

What is eating my rhododendron leaves?

If you notice something eating your rhododendron leaves, it’s likely that you’re dealing with a pest infestation. Several common pests can feed on rhododendron leaves, including:

1. Rhododendron Leafhopper: These tiny insects feed on the undersides of rhododendron leaves, causing stippling and discoloration.
2. Azalea Lace Bug: Lace bugs are small, winged insects that suck sap from the undersides of rhododendron leaves, leaving behind yellow stippling and black excrement spots.
3. Caterpillars: Various caterpillar species, such as the azalea caterpillar or the rhododendron borer, can feed on rhododendron leaves, causing visible damage.
4. Deer: In areas where deer are present, they may browse on rhododendron leaves, especially during times of food scarcity.

To identify the culprit, carefully inspect the affected leaves and look for signs of the pest itself or its feeding damage. Once you’ve identified the pest, you can take appropriate measures to control it. This may include using insecticidal soaps or horticultural oils for small infestations, applying insecticides labeled for rhododendrons, or using physical barriers or repellents to deter larger pests like deer. Regular monitoring and prompt action can help protect your rhododendrons from further damage.

Should i cover my rhododendron for winter?

Whether or not to cover your rhododendron for winter depends on various factors, including your local climate, the specific variety of rhododendron, and its age and health. In regions with harsh winters, covering young or newly planted rhododendrons can help protect them from freezing temperatures and drying winds. Here are some considerations:

1. Cold Hardiness: Some rhododendron varieties are more cold-hardy than others. If you have a hardy variety and your area experiences mild winters, covering may not be necessary.
2. Age and Health: Young or newly planted rhododendrons are more vulnerable to winter damage, so providing extra protection during their first few winters can be beneficial. Additionally, rhododendrons that are already stressed or weakened may benefit from winter protection.
3. Covering Methods: If you decide to cover your rhododendron, use materials like burlap, frost cloth, or blankets to create a barrier against cold temperatures and drying winds. Avoid using plastic, as it can trap moisture and promote fungal diseases.
4. Ventilation: Ensure that the covering allows for some airflow to prevent moisture buildup and reduce the risk of fungal issues.
5. Timing: Cover your rhododendron before the first frost of winter and remove the covering once the danger of frost has passed in spring. Leaving the covering on too long can lead to moisture buildup and encourage fungal diseases.

Before making a decision, consider consulting with local gardening experts or nurseries familiar with your area’s climate to get personalized advice on winter care for your rhododendrons.

Rhododendron species

1. Rhododendron aberconwayi Cowan
2. Rhododendron abhayae L.K.Rai
3. Rhododendron abietifolium Sleumer
4. Rhododendron acrophilum Merr. & Quisumb.
5. Rhododendron acuminatum Hook.f.
6. Rhododendron adamsii Rehder
7. Rhododendron adenanthum M.Y.He
8. Rhododendron adenobracteum X.F.Gao & Y.L.Peng
9. Rhododendron adenogynum Diels
10. Rhododendron adenopodum Franch.
11. Rhododendron adenosum (Cowan & Davidian) Davidian
12. Rhododendron adinophyllum Merr.
13. Rhododendron aequabile J.J.Sm.
14. Rhododendron aeruginosum Hook.f.
15. Rhododendron afghanicum Aitch. & Hemsl.
16. Rhododendron aganniphum Balf.f. & Kingdon-Ward
17. Rhododendron × agastum Balf.f. & W.W.Sm.
18. Rhododendron agathodaemonis J.J.Sm.
19. Rhododendron alabamense Rehder
20. Rhododendron albertsenianum Forrest ex Balf.f.
21. Rhododendron albiflorum Hook.
22. Rhododendron alborugosum Argent & J.Dransf.
23. Rhododendron albrechtii Maxim.
24. Rhododendron album Blume
25. Rhododendron alternans Sleumer
26. Rhododendron alticola Sleumer
27. Rhododendron alutaceum Balf.f. & W.W.Sm.
28. Rhododendron amagianum (Makino) Makino ex H.Hara
29. Rhododendron amakusaense (K.Takada ex T.Yamaz.) T.Yamaz.
30. Rhododendron amandum Cowan
31. Rhododendron ambiguum Hemsl.
32. Rhododendron amesiae Rehder & E.H.Wilson
33. Rhododendron × amoenum (Lindl.) Planch.
34. Rhododendron amundsenianum Hand.-Mazz.
35. Rhododendron anagalliflorum Wernham
36. Rhododendron andrineae Danet
37. Rhododendron angiense J.J.Sm.
38. Rhododendron angulatum J.J.Sm.
39. Rhododendron annae Franch.
40. Rhododendron anthopogon D.Don
41. Rhododendron anthopogonoides Maxim.
42. Rhododendron anthosphaerum Diels
43. Rhododendron anwheiense E.H.Wilson
44. Rhododendron aperantum Balf.f. & Kingdon-Ward
45. Rhododendron apiense Argent
46. Rhododendron apoanum Stein
47. Rhododendron apradae U.Rai & Lama
48. Rhododendron araiophyllum Balf.f. & W.W.Sm.
49. Rhododendron arborescens (Pursh) Torr.
50. Rhododendron arboreum Sm.
51. Rhododendron archboldianum Sleumer
52. Rhododendron ardii Hutabarat, Mambrasar & Mustaqim
53. Rhododendron arenicola Sleumer
54. Rhododendron arfakianum Becc.
55. Rhododendron argipeplum Balf.f. & R.E.Cooper
56. Rhododendron argyrophyllum Franch.
57. Rhododendron arizelum Balf.f. & Forrest
58. Rhododendron armitii F.M.Bailey
59. Rhododendron arunachalense D.F.Chamb. & Rae
60. Rhododendron asperrimum Sleumer
61. Rhododendron asperulum Kingdon-Ward
62. Rhododendron asperum J.J.Sm.
63. Rhododendron assamicum W.Bull
64. Rhododendron asterochnoum Diels
65. Rhododendron astrophorum M.N.Tamayo, Y.P.Ang & A.S.Rob.
66. Rhododendron atjehense Sleumer
67. Rhododendron atlanticum (Ashe) Rehder
68. Rhododendron atrichum Argent
69. Rhododendron atropunicum H.P.Yang
70. Rhododendron atropurpureum Sleumer
71. Rhododendron atrovirens Franch.
72. Rhododendron augustinei Hemsl.
73. Rhododendron aureodorsale (W.P.Fang ex J.Q.Fu) Y.P.Ma & J.Nielsen
74. Rhododendron aureum Georgi
75. Rhododendron auriculatum Hemsl.
76. Rhododendron aurigeranum Sleumer
77. Rhododendron auritum Tagg
78. Rhododendron austrinum (Small) Rehder
79. Rhododendron awatosaense Minamit. & Yonek.
80. Rhododendron bachii H.Lév.
81. Rhododendron baconii Argent, A.Lamb & Phillipps
82. Rhododendron baenitzianum Lauterb.
83. Rhododendron bagobonum H.F.Copel.
84. Rhododendron baihuaense Y.P.Ma
85. Rhododendron baileyi Balf.f.
86. Rhododendron bailiense Y.P.Ma, C.Q.Zhang & D.F.Chamb.
87. Rhododendron bainaense Xiang Chen & C.H.Yang
88. Rhododendron bainbridgeanum Tagg & Forrest
89. Rhododendron × bakeri (W.P.Lemmon & McKay) H.H.Hume
90. Rhododendron balangense W.P.Fang
91. Rhododendron balfourianum Diels
92. Rhododendron bamaense Z.J.Zhao
93. Rhododendron banghamiorum (J.J.Sm.) Sleumer
94. Rhododendron barbatum Wall. ex G.Don
95. Rhododendron barkamense D.F.Chamb.
96. Rhododendron basilicum Balf.f. & W.W.Sm.
97. Rhododendron × bathyphyllum Balf.f. & Forrest
98. Rhododendron beanianum Cowan
99. Rhododendron beccarii Sleumer
100. Rhododendron beesianum Diels
101. Rhododendron bellissimum D.F.Chamb.
102. Rhododendron benhallii Craven
103. Rhododendron benomense Rafidah & A.C.Elliott
104. Rhododendron beyerinckianum Koord.
105. Rhododendron bhutanense D.G.Long & Bowes Lyon
106. Rhododendron biappendiculatum Craven
107. Rhododendron bijiangense T.L.Ming
108. Rhododendron bivelatum Balf.f.
109. Rhododendron blackii Sleumer
110. Rhododendron bloembergenii Sleumer
111. Rhododendron boninense Nakai
112. Rhododendron bonvalotii Franch.
113. Rhododendron boothii Nutt.
114. Rhododendron borneense (J.J.Sm.) Argent, A.Lamb & Phillipps
115. Rhododendron brachyantherum Warb. ex P.Sarasin & Sarasin
116. Rhododendron brachyanthum Franch.
117. Rhododendron brachycarpum D.Don ex G.Don Plant FAQs: Rhododendron Brachycarpum – Compact Rhododendron
118. Rhododendron brachygynum H.F.Copel.
119. Rhododendron brachypodarium Sleumer
120. Rhododendron brachypodum W.P.Fang & P.S.Liu
121. Rhododendron bracteatum Rehder & E.H.Wilson
122. Rhododendron brassii Sleumer
123. Rhododendron brentelii Argent
124. Rhododendron brevicaudatum R.C.Fang & S.S.Chang
125. Rhododendron brevinerve Chun & W.P.Fang
126. Rhododendron breviperulatum Hayata
127. Rhododendron brevipes Sleumer
128. Rhododendron brevipetiolatum M.Y.Fang
129. Rhododendron bryophilum Sleumer
130. Rhododendron bullifolium Sleumer
131. Rhododendron bulu Hutch.
132. Rhododendron × bungonishikii Komatsu
133. Rhododendron bureavii Franch.
134. Rhododendron bureavioides Balf.f.
135. Rhododendron × burjaticum Malyschev
136. Rhododendron burmanicum Hutch.
137. Rhododendron burttii P.Woods
138. Rhododendron buruense J.J.Sm.
139. Rhododendron buxifolium H.Low ex Hook.f.
140. Rhododendron buxoides Sleumer
141. Rhododendron caesium Hutch.
142. Rhododendron caespitosum Sleumer
143. Rhododendron calendulaceum (Michx.) Torr.
144. Rhododendron caliginis Kores
145. Rhododendron callimorphum Balf.f. & W.W.Sm.
146. Rhododendron calophytum Franch.
147. Rhododendron calosanthes Sleumer
148. Rhododendron calostrotum Balf.f. & Kingdon-Ward
149. Rhododendron calvescens Balf.f. & Forrest
150. Rhododendron camelliiflorum Hook.f.
151. Rhododendron campanulatum D.Don
152. Rhododendron campylocarpum Hook.f.
153. Rhododendron campylogynum Franch.
154. Rhododendron camtschaticum Pall.
155. Rhododendron canadense (L.) Torr.
156. Rhododendron × candelabrum Hook.f.
157. Rhododendron canescens (Michx.) Sweet
158. Rhododendron capellae Kores
159. Rhododendron capitatum Maxim.
160. Rhododendron carneum Hutch.
161. Rhododendron carrii Sleumer
162. Rhododendron carringtoniae F.Muell.
163. Rhododendron carstensense Wernham
164. Rhododendron catacosmum Balf.f. ex Tagg
165. Rhododendron catawbiense Michx. Plant FAQs: Rhododendron Catawbiense – Catawba Rhododendron
166. Rhododendron caucasicum Pall.
167. Rhododendron cavaleriei H.Lév.
168. Rhododendron celebicum (Blume) DC.
169. Rhododendron cephalanthum Franch.
170. Rhododendron cerasinum Tagg
171. Rhododendron cernuum Sleumer
172. Rhododendron chamaethomsonii (Tagg) Cowan & Davidian
173. Rhododendron × chamaezelum Balf.f. & Forrest
174. Rhododendron chamahense Rafidah
175. Rhododendron chamberlainii Craven
176. Rhododendron championiae Hook.
177. Rhododendron changii (W.P.Fang) W.P.Fang
178. Rhododendron chaoanense T.C.Wu & P.C.Tam
179. Rhododendron × charadzeae A.P.Khokhr. & Mazurenko
180. Rhododendron charitopes Balf.f. & Farrer
181. Rhododendron charitostreptum Balf.f. & Kingdon-Ward
182. Rhododendron chevalieri Dop ex A.Chev.
183. Rhododendron chihsinianum Chun & W.P.Fang
184. Rhododendron chilanshanense Kurash.
185. Rhododendron chiliangense S.S.Ying
186. Rhododendron chionanthum Tagg & Forrest
187. Rhododendron christi F.Först.
188. Rhododendron christianiae Sleumer
189. Rhododendron chrysocalyx H.Lév. & Vaniot
190. Rhododendron chrysodoron Tagg ex Hutch.
191. Rhododendron chrysolepis Hutch. & Kingdon-Ward
192. Rhododendron chunienii Chun & W.P.Fang
193. Rhododendron chunii W.P.Fang
194. Rhododendron ciliatum Hook.f.
195. Rhododendron ciliicalyx Franch.
196. Rhododendron ciliilobum Sleumer
197. Rhododendron ciliipes Hutch.
198. Rhododendron cinchoniflorum Sleumer
199. Rhododendron cinerascens Sleumer
200. Rhododendron cinnabarinum Hook.f.
201. Rhododendron circinnatum Cowan & Kingdon-Ward
202. Rhododendron citriniflorum Balf.f. & Forrest
203. Rhododendron citrinum (Hassk.) Hassk.
204. Rhododendron clementinae Forrest ex W.W.Sm.
205. Rhododendron cochlearifolium Xiang Chen & Jia Y.Huang
206. Rhododendron cockburnii (Argent, A.Lamb & Phillipps) Craven
207. Rhododendron codonanthum Balf.f. & Forrest
208. Rhododendron coelicum Balf.f. & Farrer
209. Rhododendron coeloneurum Diels
210. Rhododendron coelorum Wernham
211. Rhododendron colemanii R.F.Mill.
212. Rhododendron collettianum Aitch. & Hemsl.
213. Rhododendron columbianum (Piper) Harmaja
214. Rhododendron comisteum Balf.f. & Forrest
215. Rhododendron commonae F.Först.
216. Rhododendron commutatum Sleumer
217. Rhododendron comparabile Sleumer
218. Rhododendron complexum Balf.f. & W.W.Sm.
219. Rhododendron comptum C.H.Wright
220. Rhododendron concinnoides Hutch. & Kingdon-Ward
221. Rhododendron concinnum Hemsl.
222. Rhododendron coriaceum Franch.
223. Rhododendron × coriifolium Sleumer
224. Rhododendron cornu-bovis Sleumer
225. Rhododendron correoides J.J.Sm.
226. Rhododendron coryanum Tagg & Forrest
227. Rhododendron cowanianum Davidian
228. Rhododendron coxianum Davidian
229. Rhododendron crassifolium Stapf
230. Rhododendron crassimedium P.C.Tam
231. Rhododendron crassistylum M.Y.He
232. Rhododendron crassum Franch.
233. Rhododendron cravenii Danet
234. Rhododendron crenulatum Hutch. ex Sleumer
235. Rhododendron cretaceum P.C.Tam
236. Rhododendron crinigerum Franch.
237. Rhododendron cruttwellii Sleumer
238. Rhododendron cuffeanum Craib ex Hutch.
239. Rhododendron culminicola F.Muell.
240. Rhododendron cumberlandense E.L.Braun
241. Rhododendron cuneatum W.W.Sm.
242. Rhododendron cuneifolium Stapf
243. Rhododendron curviflorum J.J.Sm.
244. Rhododendron cuspidellum Sleumer
245. Rhododendron cyanocarpum (Franch.) W.W.Sm.
246. Rhododendron cyrtophyllum Wernham
247. Rhododendron dachengense G.Z.Li
248. Rhododendron dalhousieae Hook.f.
249. Rhododendron danbaense L.C.Hu
250. Rhododendron dasycladoides Hand.-Mazz.
251. Rhododendron dasypetalum Balf.f. & Forrest
252. Rhododendron datiandingense Z.J.Feng
253. Rhododendron dauricum L.
254. Rhododendron davidii Franch.
255. Rhododendron davidsonianum Rehder & E.H.Wilson
256. Rhododendron × davisianum R.I.Milne
257. Rhododendron dawuense H.P.Yang
258. Rhododendron dayaoshanense L.M.Gao & D.Z.Li
259. Rhododendron dayiense M.Y.He
260. Rhododendron decipiens Lacaita
261. Rhododendron declivatum Ching & H.P.Yang
262. Rhododendron decorum Franch.
263. Rhododendron degronianum Carrière
264. Rhododendron dekatanum Cowan
265. Rhododendron delavayi Franch.
266. Rhododendron delicatulum Sleumer
267. Rhododendron dendricola Hutch.
268. Rhododendron dendrocharis Franch.
269. Rhododendron densifolium K.M.Feng
270. Rhododendron denudatum H.Lév.
271. Rhododendron detersile Franch.
272. Rhododendron × detonsum Balf.f. & Forrest
273. Rhododendron detznerianum Sleumer
274. Rhododendron dianthosmum Sleumer
275. Rhododendron dichroanthum Diels
276. Rhododendron dielsianum Schltr.
277. Rhododendron dignabile Cowan
278. Rhododendron dilatatum Miq.
279. Rhododendron dimitrum Balf.f. & Forrest
280. Rhododendron × diphrocalyx Balf.f.
281. Rhododendron discolor Franch.
282. Rhododendron disterigmoides Sleumer
283. Rhododendron × diversiflorum Danet
284. Rhododendron diversipilosum (Nakai) Harmaja
285. Rhododendron × duclouxii H.Lév.
286. Rhododendron dumicola Tagg & Forrest
287. Rhododendron durionifolium Becc.
288. Rhododendron dutartrei Danet
289. Rhododendron eastmanii Kron & Creel
290. Rhododendron ebianense M.Y.Fang
291. Rhododendron eclecteum Balf.f. & Forrest
292. Rhododendron edanoi Merr. & Quisumb.
293. Rhododendron × edgarianum Rehder & E.H.Wilson
294. Rhododendron edgeworthii Hook.f.
295. Rhododendron eheinense M.Y.He & Z.J.Zhao
296. Rhododendron elegantulum Tagg & Forrest
297. Rhododendron elliottii Watt ex Brandis
298. Rhododendron emarginatum Hemsl. & E.H.Wilson
299. Rhododendron englerianum Koord.
300. Rhododendron × enomotoi T.Yamaz.
301. Rhododendron × epilosum (J.J.Sm.) Argent
302. Rhododendron erastum Balf.f. & Forrest
303. Rhododendron ericoides H.Low ex Hook.f.
304. Rhododendron eriobotryoides Xiang Chen & Jia Y.Huang
305. Rhododendron eriocarpum (Hayata) Nakai
306. Rhododendron erosipetalum J.J.Sm.
307. Rhododendron erosum Cowan
308. Rhododendron × erythrocalyx Balf.f. & Forrest
309. Rhododendron esetulosum Balf.f. & Forrest
310. Rhododendron euchroum Balf.f. & Kingdon-Ward
311. Rhododendron eudoxum Balf.f. & Forrest
312. Rhododendron eurysiphon Tagg & Forrest
313. Rhododendron evelyneae Danet
314. Rhododendron exasperatum Tagg
315. Rhododendron excelsum A.Chev.
316. Rhododendron extrorsum J.J.Sm.
317. Rhododendron exuberans (Sleumer) Argent
318. Rhododendron eymae Sleumer
319. Rhododendron faberi Hemsl.
320. Rhododendron facetum Balf.f. & Kingdon-Ward
321. Rhododendron faithiae Chun
322. Rhododendron falconeri Hook.f.
323. Rhododendron fallacinum Sleumer
324. Rhododendron fangchengense P.C.Tam
325. Rhododendron farinosum H.Lév.
326. Rhododendron farrerae Sweet
327. Rhododendron fastigiatum Franch.
328. Rhododendron faucium D.F.Chamb.
329. Rhododendron feddei H.Lév.
330. Rhododendron ferrugineum L.
331. Rhododendron fictolacteum Balf.f.
332. Rhododendron × filidactylis R.I.Milne
333. Rhododendron × fittianum Balf.f.
334. Rhododendron flammeum (Michx.) Sarg.
335. Rhododendron flavantherum Hutch. & Kingdon-Ward
336. Rhododendron flavidum Franch.
337. Rhododendron flavoflorum T.L.Ming
338. Rhododendron flavoviride J.J.Sm.
339. Rhododendron fletcherianum Davidian
340. Rhododendron fleuryi Dop ex A.Chev.
341. Rhododendron floccigerum Franch.
342. Rhododendron floribundum Franch.
343. Rhododendron flosculum W.P.Fang & G.Z.Li
344. Rhododendron flumineum W.P.Fang & M.Y.He
345. Rhododendron formosanum Hemsl.
346. Rhododendron formosum Wall.
347. Rhododendron forrestii Balf.f. ex Diels
348. Rhododendron fortunans J.J.Sm.
349. Rhododendron fortunei Lindl.
350. Rhododendron fragariiflorum Kingdon-Ward
351. Rhododendron frey-wysslingii J.J.Sm.
352. Rhododendron × fuchsii Sleumer
353. Rhododendron fuchsiifolium H.Lév.
354. Rhododendron fulgens Hook.f.
355. Rhododendron fulvum Balf.f. & W.W.Sm.
356. Rhododendron fuscipilum M.Y.He
357. Rhododendron fuyuanense Z.H.Yang
358. Rhododendron galactinum Balf.f. ex Tagg
359. Rhododendron gannanense Z.C.Feng & X.G.Sun
360. Rhododendron gardenia Schltr.
361. Rhododendron gaultheriifolium J.J.Sm.
362. Rhododendron genestierianum Forrest
363. Rhododendron × geraldii (Hutch.) Ivens
364. Rhododendron gideonii Argent
365. Rhododendron × gilliardii Sleumer
366. Rhododendron giulianettii Lauterb.
367. Rhododendron glabrifilum J.J.Sm.
368. Rhododendron glabriflorum J.J.Sm.
369. Rhododendron × gladwynense M.G.Henry
370. Rhododendron glanduliferum Franch.
371. Rhododendron glandulosum (Standl. ex Small) Millais
372. Rhododendron glaucophyllum Rehder
373. Rhododendron glischroides Tagg & Forrest
374. Rhododendron glischrum Balf.f. & W.W.Sm.
375. Rhododendron gologense C.J.Xu & Z.J.Zhao
376. Rhododendron gonggashanense W.K.Hu
377. Rhododendron gongshanense T.L.Ming
378. Rhododendron goodenoughii Sleumer
379. Rhododendron goyozanense (M.Kikuchi) Craven
380. Rhododendron gracilentum F.Muell.
381. Rhododendron grande Wight
382. Rhododendron griersonianum Balf.f. & Forrest
383. Rhododendron griffithianum Wight
384. Rhododendron groenlandicum (Oeder) Kron & Judd
385. Rhododendron guangnanense R.C.Fang
386. Rhododendron guihainianum G.Z.Li
387. Rhododendron guizhongense G.Z.Li
388. Rhododendron guizhouense M.Y.Fang
389. Rhododendron gumineense Craven
390. Rhododendron habbemae Koord.
391. Rhododendron habrotrichum Balf.f. & W.W.Sm.
392. Rhododendron haematodes Franch.
393. Rhododendron haematophthalmum Sleumer
394. Rhododendron hainanense Merr.
395. Rhododendron hameliiflorum Wernham
396. Rhododendron hanceanum Hemsl.
397. Rhododendron hancockii Hemsl.
398. Rhododendron hangzhouense W.P.Fang & M.Y.He
399. Rhododendron haofui Chun & W.P.Fang
400. Rhododendron hartleyi Sleumer
401. Rhododendron × hasegawae S.Watan.
402. Rhododendron hatamense Becc.
403. Rhododendron heatherae Rushforth
404. Rhododendron heizhugouense M.Y.He & L.C.Hu
405. Rhododendron heliolepis Franch.
406. Rhododendron hellwigii Warb.
407. Rhododendron helodes Sleumer
408. Rhododendron × hemigymnum (Tagg & Forrest) D.F.Chamb.
409. Rhododendron hemitrichotum Balf.f. & Forrest
410. Rhododendron hemsleyanum E.H.Wilson
411. Rhododendron henanense W.P.Fang
412. Rhododendron henryi Hance
413. Rhododendron herzogii Warb.
414. Rhododendron heteroclitum H.P.Yang
415. Rhododendron heterolepis Danet
416. Rhododendron × hidaense Makino ex H.Hara
417. Rhododendron hidakanum H.Hara
418. Rhododendron himantodes Sleumer
419. Rhododendron hippophaeoides Balf.f. & W.W.Sm.
420. Rhododendron hirsutipetiolatum R.C.Fang & A.L.Zhang
421. Rhododendron hirsutum L.
422. Rhododendron hirtipes Tagg
423. Rhododendron hirtolepidotum J.J.Sm.
424. Rhododendron hodgsonii Hook.f.
425. Rhododendron hoi W.P.Fang
426. Rhododendron hongkongense Hutch.
427. Rhododendron hooglandii Sleumer
428. Rhododendron hookeri Nutt.
429. Rhododendron horlickianum Davidian
430. Rhododendron huadingense B.Y.Ding & Y.Y.Fang
431. Rhododendron huangpingense Xiang Chen & Jia Y.Huang
432. Rhododendron huanshanense S.S.Ying
433. Rhododendron huanum W.P.Fang
434. Rhododendron huguangense P.C.Tam
435. Rhododendron huidongense T.L.Ming
436. Rhododendron hunanense Chun ex P.C.Tam
437. Rhododendron hunnewellianum Rehder & E.H.Wilson
438. Rhododendron × hunsteinii Argent
439. Rhododendron hyacinthosmum Sleumer
440. Rhododendron hylaeum Balf.f. & Farrer
441. Rhododendron hyperythrum Hayata
442. Rhododendron hypoglaucum Hemsl.
443. Rhododendron hypoleucophyllum Makino
444. Rhododendron hypoleucum (Kom.) Harmaja
445. Rhododendron hyugaense (T.Yamaz.) T.Yamaz.
446. Rhododendron igneum Cowan
447. Rhododendron impeditum Balf.f. & W.W.Sm.
448. Rhododendron impositum J.J.Sm.
449. Rhododendron impressopunctatum J.J.Sm.
450. Rhododendron inaequale (C.B.Clarke) Hutch.
451. Rhododendron incommodum Sleumer
452. Rhododendron inconspicuum J.J.Sm.
453. Rhododendron indicum (L.) Sweet Plant FAQs: Rhododendron Indicum
454. Rhododendron × inopinum Balf.f. ex Tagg
455. Rhododendron insculptum Kingdon-Ward
456. Rhododendron insigne Hemsl. & E.H.Wilson
457. Rhododendron × intermedium Tausch
458. Rhododendron intranervatum Sleumer
459. Rhododendron intricatum Franch.
460. Rhododendron invictum Balf.f. & Farrer
461. Rhododendron irroratum Franch.
462. Rhododendron japonicum (A.Gray) Suringar
463. Rhododendron japonoheptamerum Kitam.
464. Rhododendron jasminiflorum Hook.
465. Rhododendron jasminoides M.Y.He
466. Rhododendron javanicum (Blume) Benn.
467. Rhododendron jiewhoei Argent
468. Rhododendron jinboense Xiang Chen & X.Chen
469. Rhododendron jinchangense Z.H.Yang
470. Rhododendron jingangshanicum P.C.Tam
471. Rhododendron jinpingense W.P.Fang & M.Y.He
472. Rhododendron jinxiuense W.P.Fang & M.Y.He
473. Rhododendron jiulongshanense Xiang Chen & Jia Y.Huang
474. Rhododendron johnstoneanum (Brandis) Watt ex Hutch.
475. Rhododendron joniense Ching & H.P.Yang
476. Rhododendron kaempferi Planch.
477. Rhododendron × kamatae (Mochizuki) Craven
478. Rhododendron kanehirae E.H.Wilson
479. Rhododendron kansuense Millais
480. Rhododendron kasoense Hutch. & Kingdon-Ward
481. Rhododendron katsumatae (M.Tash. & H.Hatta) Craven
482. Rhododendron kawakamii Hayata
483. Rhododendron × kawir Danet
484. Rhododendron × keditii Sleumer
485. Rhododendron keiskei Miq.
486. Rhododendron keleticum Balf.f. & Forrest
487. Rhododendron kemulense J.J.Sm.
488. Rhododendron kendrickii Nutt.
489. Rhododendron kerowagiense Argent
490. Rhododendron kesangiae D.G.Long & Rushforth
491. Rhododendron keysii Nutt.
492. Rhododendron kiangsiense W.P.Fang
493. Rhododendron kingianum Watt
494. Rhododendron × kisoanum Okuhara ex T.Shimizu
495. Rhododendron kiusianum Makino
496. Rhododendron kiyosumense (Makino) Makino
497. Rhododendron klossii Ridl.
498. Rhododendron kochii Stein
499. Rhododendron kogo Danet
500. Rhododendron × komatsui T.Yamaz.
501. Rhododendron komiyamae Makino
502. Rhododendron kongboense Kingdon-Ward ex Hutch.
503. Rhododendron konori Becc.
504. Rhododendron korthalsii Miq.
505. Rhododendron kotschyi Simonk.
506. Rhododendron × koudzumontanum Hid.Takah. & Katsuy.
507. Rhododendron kroniae Craven
508. Rhododendron kuomeianum Yu H.Chang, J.Nielsen & Y.P.Ma
509. Rhododendron × kuratanum S.Watan.
510. Rhododendron × kurohimense Arakawa
511. Rhododendron kwangsiense Hu ex P.C.Tam
512. Rhododendron kwangtungense Merr. & Chun
513. Rhododendron kyawii Lace & W.W.Sm.
514. Rhododendron kyushuense Minamit.
515. Rhododendron labolengense Ching & H.P.Yang
516. Rhododendron lacteum Franch.
517. Rhododendron laetum J.J.Sm.
518. Rhododendron lagopus Nakai
519. Rhododendron lagunculicarpum J.J.Sm.
520. Rhododendron lambianum Argent
521. Rhododendron lamii J.J.Sm.
522. Rhododendron lampongum Miq.
523. Rhododendron lamrialianum Argent & T.J.Barkman
524. Rhododendron lanatoides D.F.Chamb.
525. Rhododendron lanatum Hook.f.
526. Rhododendron lanceolatum Ridl.
527. Rhododendron langbianense A.Chev. ex Dop
528. Rhododendron lanigerum Tagg
529. Rhododendron laojunense T.L.Ming
530. Rhododendron laojunshanense M.Y.Fang
531. Rhododendron lapponicum (L.) Wahlenb.
532. Rhododendron lasiostylum Hayata
533. Rhododendron lateriflorum R.C.Fang & A.L.Zhang
534. Rhododendron latoucheae Franch.
535. Rhododendron laudandum Cowan
536. Rhododendron leigongshanense C.H.Yang, Z.G.Xie, Y.F.Yu & Z.R.Yang
537. Rhododendron leishanicum W.P.Fang & X.S.Zhang
538. Rhododendron lepidostylum Balf.f. & Forrest
539. Rhododendron lepidotum Wall. ex G.Don
540. Rhododendron leptanthum F.Muell.
541. Rhododendron leptobrachion Sleumer
542. Rhododendron leptocarpum Nutt.
543. Rhododendron leptomorphum Sleumer
544. Rhododendron leptopeplum Balf.f. & Forrest
545. Rhododendron leptothrium Balf.f. & Forrest
546. Rhododendron leucaspis Tagg
547. Rhododendron leucogigas Sleumer
548. Rhododendron levinei Merr.
549. Rhododendron leytense Merr.
550. Rhododendron liangshanicum Z.J.Zhao
551. Rhododendron liaoxigense S.L.Tung & Z.Lu
552. Rhododendron liboense Zheng R.Chen & K.M.Lan
553. Rhododendron × liewianum Argent, A.Lamb & Phillipps
554. Rhododendron lilacinum Xiang Chen & X.Chen
555. Rhododendron liliiflorum H.Lév.
556. Rhododendron lindaueanum Koord.
557. Rhododendron lindleyi T.Moore
558. Rhododendron lineare Merr.
559. Rhododendron linearilobum R.C.Fang & A.L.Chang
560. Rhododendron linguiense G.Z.Li
561. Rhododendron litchiifolium T.C.Wu & P.C.Tam
562. Rhododendron loboense H.F.Copel.
563. Rhododendron lochiae F.Muell.
564. Rhododendron × lochmium Balf.f.
565. Rhododendron loerzingii J.J.Sm.
566. Rhododendron lohitense D.Bhattach.
567. Rhododendron lompohense J.J.Sm.
568. Rhododendron longesquamatum C.K.Schneid.
569. Rhododendron longicalyx M.Y.Fang
570. Rhododendron longifalcatum P.C.Tam
571. Rhododendron longiflorum Lindl.
572. Rhododendron longilobum L.M.Gao & D.Z.Li
573. Rhododendron longipedicellatum Lei Cai & Y.P.Ma
574. Rhododendron longiperulatum Hayata
575. Rhododendron longipes Rehder & E.H.Wilson
576. Rhododendron longistylum Rehder & E.H.Wilson
577. Rhododendron loniceriflorum P.C.Tam
578. Rhododendron loranthiflorum Sleumer
579. Rhododendron lowii Hook.f.
580. Rhododendron lowndesii Davidian
581. Rhododendron luciferum (Cowan) Cowan
582. Rhododendron ludlowii Cowan
583. Rhododendron luhuoense H.P.Yang
584. Rhododendron lukiangense Franch.
585. Rhododendron lulangense L.C.Hu & Tateishi
586. Rhododendron lungchiense W.P.Fang
587. Rhododendron luraluense Sleumer
588. Rhododendron luteiflorum (Davidian) Cullen
589. Rhododendron lutescens Franch.
590. Rhododendron luteum Sweet
591. Rhododendron macabeanum G.Watt ex Balf.f.
592. Rhododendron macgregoriae F.Muell.
593. Rhododendron mackenzianum Forrest
594. Rhododendron macrophyllum D.Don ex G.Don
595. Rhododendron macrosiphon Sleumer
596. Rhododendron maculiferum Franch.
597. Rhododendron maddenii Hook.f.
598. Rhododendron madulidii Argent
599. Rhododendron magnificum Kingdon-Ward
600. Rhododendron magniflorum W.K.Hu
601. Rhododendron mainlingense S.H.Huang & R.C.Fang
602. Rhododendron majus (J.J.Sm.) Sleumer
603. Rhododendron makinoi Tagg ex Nakai
604. Rhododendron malayanum Jack
605. Rhododendron malipoense M.Y.He
606. Rhododendron mallotum Balf.f. & Kingdon-Ward
607. Rhododendron maoerense W.P.Fang & G.Z.Li
608. Rhododendron maowenense Ching & H.P.Yang
609. Rhododendron mariae Hance
610. Rhododendron mariesii Hemsl. & E.H.Wilson
611. Rhododendron martinianum Balf.f. & Forrest
612. Rhododendron maximum L.
613. Rhododendron maxiongense C.Q.Zhang & D.Paterson
614. Rhododendron maxwellii Gibbs
615. Rhododendron mayebarae Nakai & H.Hara
616. Rhododendron meagae Mambrasar & Hutabarat
617. Rhododendron mechukae A.A.Mao & A.Paul
618. Rhododendron meddianum Forrest
619. Rhododendron medoense W.P.Fang & M.Y.He
620. Rhododendron megacalyx Balf.f. & Kingdon-Ward
621. Rhododendron megalanthum M.Y.Fang
622. Rhododendron megeratum Balf.f. & Forrest
623. Rhododendron meijeri Argent, A.Lamb & Phillipps
624. Rhododendron mekongense Franch.
625. Rhododendron melantherum Schltr.
626. Rhododendron meliphagidum J.J.Sm.
627. Rhododendron mendumiae Argent
628. Rhododendron mengtszense Balf.f. & W.W.Sm.
629. Rhododendron menziesii Craven
630. Rhododendron meridionale P.C.Tam
631. Rhododendron mianningense Z.J.Zhao
632. Rhododendron micranthum Turcz.
633. Rhododendron microcarpum R.L.Liu & L.M.Gao
634. Rhododendron microgynum Balf.f. & Forrest
635. Rhododendron micromalayanum Sleumer
636. Rhododendron microphyton Franch.
637. Rhododendron milleri Argent
638. Rhododendron mimetes Tagg & Forrest
639. Rhododendron mindanaense Merr.
640. Rhododendron mingii Y.P.Ma, L.M.Gao & E.D.Liu
641. Rhododendron miniatum Cowan
642. Rhododendron minimifolium Wernham
643. Rhododendron minus Michx.
644. Rhododendron minutiflorum Hu
645. Rhododendron minyaense M.N.Philipson & Philipson
646. Rhododendron mitriforme P.C.Tam
647. Rhododendron miyiense W.K.Hu
648. Rhododendron × mizumotoi S.Watan.
649. Rhododendron mogeanum Argent
650. Rhododendron molle (Blume) G.Don
651. Rhododendron mollianum Koord.
652. Rhododendron mollicomum Balf.f. & W.W.Sm.
653. Rhododendron monanthum Balf.f. & W.W.Sm.
654. Rhododendron monkoboense Argent
655. Rhododendron monodii (H.J.Lam) Argent
656. Rhododendron montiganum T.L.Ming
657. Rhododendron montroseanum Davidian
658. Rhododendron morii Hayata
659. Rhododendron moulmainense Hook.
660. Rhododendron moupinense Franch.
661. Rhododendron mucronatum (Blume) G.Don
662. Rhododendron mucronulatum Turcz.
663. Rhododendron multicolor Miq.
664. Rhododendron multiflorum (Maxim.) Craven
665. Rhododendron multinervium Sleumer
666. Rhododendron muscicola J.J.Sm.
667. Rhododendron muscipulum Danet
668. Rhododendron myrsinifolium Ching ex W.P.Fang & M.Y.He
669. Rhododendron myrsinites Sleumer
670. Rhododendron naamkwanense Merr.
671. Rhododendron nakaharae Hayata
672. Rhododendron nakotiltum Balf.f. & Forrest
673. Rhododendron nanjianense K.M.Feng & Z.H.Yang
674. Rhododendron nanophyton Sleumer
675. Rhododendron nanpingense P.C.Tam
676. Rhododendron nantouense S.S.Ying
677. Rhododendron natalicium Sleumer
678. Rhododendron nayarii G.D.Pal
679. Rhododendron × nebulicola Danet
680. Rhododendron neobritannicum Sleumer
681. Rhododendron neriiflorum Franch.
682. Rhododendron neriifolium Schltr.
683. Rhododendron nervulosum Sleumer
684. Rhododendron ngawchangense M.N.Philipson & Philipson
685. Rhododendron nhatrangense Dop
686. Rhododendron nieuwenhuisii J.J.Sm.
687. Rhododendron nigroglandulosum Nitz.
688. Rhododendron × niko-montanum (Komatsu) Nakai
689. Rhododendron nipponicum Matsum.
690. Rhododendron nitidulum Rehder & E.H.Wilson
691. Rhododendron nivale Hook.f.
692. Rhododendron niveoflorum Argent
693. Rhododendron niveum Hook.f.
694. Rhododendron noriakianum T.Suzuki
695. Rhododendron nortoniae Merr.
696. Rhododendron nubicola Wernham
697. Rhododendron nudipes Nakai
698. Rhododendron nummatum J.J.Sm.
699. Rhododendron nuttallii T.J.Booth ex Nutt.
700. Rhododendron nyingchiense R.C.Fang & S.H.Huang
701. Rhododendron nymphaeoides W.K.Hu
702. Rhododendron oblancifolium M.Y.Fang
703. Rhododendron occidentale (Torr. & A.Gray) A.Gray
704. Rhododendron ochraceum Rehder & E.H.Wilson
705. Rhododendron octandrum M.Y.He
706. Rhododendron oldhamii Maxim.
707. Rhododendron oliganthum Sleumer
708. Rhododendron oligocarpum W.P.Fang & X.S.Zhang
709. Rhododendron × ootrichum (Sleumer) Argent
710. Rhododendron opulentum Sleumer
711. Rhododendron orbiculare Decne.
712. Rhododendron orbiculatum Ridl.
713. Rhododendron oreadum Wernham
714. Rhododendron oreites Sleumer
715. Rhododendron oreodoxa Franch.
716. Rhododendron oreogenum L.C.Hu
717. Rhododendron oreotrephes W.W.Sm.
718. Rhododendron orthocladum Balf.f. & Forrest
719. Rhododendron osuzuyamense T.Yamaz.
720. Rhododendron ovatum (Lindl.) Planch. ex Maxim.
721. Rhododendron oxycoccoides Sleumer
722. Rhododendron pachycarpon Sleumer
723. Rhododendron pachyphyllum W.P.Fang
724. Rhododendron pachypodum Balf.f. & W.W.Sm.
725. Rhododendron pachysanthum Hayata
726. Rhododendron pachystigma Sleumer
727. Rhododendron pachytrichum Franch.
728. Rhododendron × pallescens Hutch.
729. Rhododendron papillatum Balf.f. & R.E.Cooper
730. Rhododendron papuanum Becc.
731. Rhododendron × paradoxum Balf.f. ex Tagg
732. Rhododendron parishii C.B.Clarke
733. Rhododendron parmulatum Cowan
734. Rhododendron parryae Hutch.
735. Rhododendron parvifolium Adams
736. Rhododendron parvulum Sleumer
737. Rhododendron pauciflorum King & Gamble
738. Rhododendron pemakoense Kingdon-Ward
739. Rhododendron pendulum Hook.f.
740. Rhododendron pennivenium Balf.f. & Forrest
741. Rhododendron × pennsylvanicum (B.E.Harkn.) Rehder
742. Rhododendron pentandrum (Maxim.) Craven
743. Rhododendron pentaphyllum Maxim.
744. Rhododendron perakense King & Gamble
745. Rhododendron × peregrinum Tagg
746. Rhododendron periclymenoides (Michx.) Shinners
747. Rhododendron perplexum Sleumer
748. Rhododendron petrocharis Diels
749. Rhododendron phaeochiton F.Muell.
750. Rhododendron phaeochristum Sleumer
751. Rhododendron phaeochrysum Balf.f. & W.W.Sm.
752. Rhododendron phaeops Sleumer
753. Rhododendron piercei Davidian
754. Rhododendron pilostylum W.K.Hu
755. Rhododendron pilosum (Michx. ex Lam.) Craven
756. Rhododendron pinetorum P.C.Tam
757. Rhododendron pingbianense M.Y.Fang
758. Rhododendron pingianum W.P.Fang
759. Rhododendron × planecostatum Sleumer
760. Rhododendron × planetum Balf.f.
761. Rhododendron platyphyllum Balf.f. & W.W.Sm.
762. Rhododendron platypodum Diels
763. Rhododendron pleianthum Sleumer
764. Rhododendron pleistanthum E.H.Wilson
765. Rhododendron pocophorum Balf.f. ex Tagg
766. Rhododendron pogonophyllum Cowan & Davidian
767. Rhododendron poilanei Dop
768. Rhododendron poluninii Davidian
769. Rhododendron polyanthemum Sleumer
770. Rhododendron polycladum Franch.
771. Rhododendron polylepis Franch.
772. Rhododendron polytrichum W.P.Fang
773. Rhododendron pomense Cowan & Davidian
774. Rhododendron ponticum L.
775. Rhododendron populare Cowan
776. Rhododendron poremense J.J.Sm.
777. Rhododendron porphyranthes Sleumer
778. Rhododendron potaninii Batalin
779. Rhododendron praestans Balf.f. & W.W.Sm.
780. Rhododendron praeteritum Hutch.
781. Rhododendron praetervisum Sleumer
782. Rhododendron praevernum Hutch.
783. Rhododendron prainianum Koord.
784. Rhododendron prattii Franch.
785. Rhododendron preptum Balf.f. & Forrest
786. Rhododendron primuliflorum Bureau & Franch.
787. Rhododendron principis Bureau & Franch.
788. Rhododendron prinophyllum (Small) Millais
789. Rhododendron proliferum Sleumer
790. Rhododendron pronum Tagg & Forrest
791. Rhododendron protandrum Sleumer
792. Rhododendron proteoides Balf.f. & W.W.Sm.
793. Rhododendron protistum Balf.f. & Forrest
794. Rhododendron pruniflorum Hutch. & Kingdon-Ward
795. Rhododendron prunifolium (Small) Millais
796. Rhododendron przewalskii Maxim.
797. Rhododendron × psammogenes Sleumer
798. Rhododendron pseudobuxifolium Sleumer
799. Rhododendron pseudochrysanthum Hayata
800. Rhododendron pseudociliipes Cullen
801. Rhododendron pseudomaddenii A.A.Mao & Bhaumik
802. Rhododendron pseudotrichanthum Sleumer
803. Rhododendron psilanthum Sleumer
804. Rhododendron pubescens Balf.f. & Forrest
805. Rhododendron pubicostatum T.L.Ming
806. Rhododendron pubigermen J.J.Sm.
807. Rhododendron pudiense Xiang Chen & Jia Y.Huang
808. Rhododendron pudingense X.Y.Dai, C.H.Yang & Y.P.Ma
809. Rhododendron pudorinum Sleumer
810. Rhododendron pudorosum Cowan
811. Rhododendron pugeense L.C.Hu
812. Rhododendron pulchroides Chun & W.P.Fang
813. Rhododendron × pulchrum Sweet
814. Rhododendron pulleanum Koord.
815. Rhododendron pumilum Hook.f.
816. Rhododendron punctifolium L.C.Hu
817. Rhododendron purdomii Rehder & E.H.Wilson
818. Rhododendron purpureiflorum J.J.Sm.
819. Rhododendron pusillum J.J.Sm.
820. Rhododendron × pyrrhoanthum Balf.f.
821. Rhododendron pyrrhophorum Sleumer
822. Rhododendron qianyangense M.Y.He
823. Rhododendron qiaojiaense L.M.Gao & D.Z.Li
824. Rhododendron qinghaiense Ching ex W.Y.Wang
825. Rhododendron quadrasianum S.Vidal
826. Rhododendron quinquefolium Bisset & S.Moore
827. Rhododendron racemosum Franch.
828. Rhododendron radendum W.P.Fang
829. Rhododendron radians J.J.Sm.
830. Rhododendron ramipilosum T.L.Ming
831. Rhododendron ramsdenianum Cowan
832. Rhododendron rappardii Sleumer
833. Rhododendron rarilepidotum J.J.Sm.
834. Rhododendron rarum Schltr.
835. Rhododendron rawatii I.D.Rai & B.S.Adhikari
836. Rhododendron recurvoides Tagg & Kingdon-Ward
837. Rhododendron redowskianum Maxim.
838. Rhododendron renschianum Sleumer
839. Rhododendron reticulatum D.Don ex G.Don
840. Rhododendron retivenium Sleumer
841. Rhododendron retrorsipilum Sleumer
842. Rhododendron retusum (Blume) Benn.
843. Rhododendron revolutum Sleumer
844. Rhododendron rex H.Lév.
845. Rhododendron reynosoi Argent
846. Rhododendron rhodanthum M.Y.He
847. Rhododendron rhodochroum Sleumer
848. Rhododendron rhodoleucum Sleumer
849. Rhododendron rhodosalpinx Sleumer
850. Rhododendron rhodostomum Sleumer
851. Rhododendron rhombifolium R.C.Fang
852. Rhododendron rhuyuenense Chun ex P.C.Tam
853. Rhododendron rigidum Franch.
854. Rhododendron rimicola X.L.Tian, Y.P.Ma & J.Nielsen
855. Rhododendron riparioides (Cullen) Cubey
856. Rhododendron ripense Makino
857. Rhododendron ripleyi Merr.
858. Rhododendron ririei Hemsl. & E.H.Wilson
859. Rhododendron rivulare Hand.-Mazz.
860. Rhododendron robinsonii Ridl.
861. Rhododendron roseatum Hutch.
862. Rhododendron roseiflorum P.F.Stevens
863. Rhododendron rosendahlii Sleumer
864. Rhododendron rothschildii Davidian
865. Rhododendron rousei Argent & Madulid
866. Rhododendron roxieanum Forrest ex W.W.Sm.
867. Rhododendron roxieoides D.F.Chamb.
868. Rhododendron rubellum Sleumer
869. Rhododendron rubiginosum Franch.
870. Rhododendron rubineiflorum Craven
871. Rhododendron rubrantherum Kingdon-Ward
872. Rhododendron rubrobracteatum Sleumer
873. Rhododendron rubropilosum Hayata
874. Rhododendron rufescens Franch.
875. Rhododendron rufohirtum Hand.-Mazz.
876. Rhododendron rufum Batalin
877. Rhododendron rugosum H.Low ex Hook.f.
878. Rhododendron rupicola W.W.Sm.
879. Rhododendron rupivalleculatum P.C.Tam
880. Rhododendron rushforthii Argent & D.F.Chamb.
881. Rhododendron russatum Balf.f. & Forrest
882. Rhododendron ruttenii J.J.Sm.
883. Rhododendron sajanense Stepanov
884. Rhododendron salicifolium Becc.
885. Rhododendron saluenense Franch.
886. Rhododendron sanctum Nakai
887. Rhododendron sanguineum Franch.
888. Rhododendron santapaui Sastry, S.K.Kataki, Peter Cox, Patricia Cox & P.Hutchison
889. Rhododendron × sarcodes Argent & Madulid
890. Rhododendron sargentianum Rehder & E.H.Wilson
891. Rhododendron × satsumense Hatus.
892. Rhododendron saxatile B.Y.Ding & Y.Y.Fang
893. Rhododendron saxicola Sleumer
894. Rhododendron saxifragoides J.J.Sm.
895. Rhododendron sayeri Sleumer
896. Rhododendron scabridibracteum Sleumer
897. Rhododendron scabrifolium Franch.
898. Rhododendron scabrum G.Don
899. Rhododendron scarlatinum Sleumer
900. Rhododendron schistocalyx Balf.f. & Forrest
901. Rhododendron schizostigma Sleumer
902. Rhododendron schlechteri Lauterb.
903. Rhododendron schlippenbachii Maxim.
904. Rhododendron × schoddei Sleumer
905. Rhododendron scopulorum Hutch.
906. Rhododendron scopulum (G.Z.Li) G.Z.Li
907. Rhododendron scortechinii King & Gamble
908. Rhododendron searleanum Sleumer
909. Rhododendron searsiae Rehder & E.H.Wilson
910. Rhododendron seimundii J.J.Sm.
911. Rhododendron seinghkuense Kingdon-Ward
912. Rhododendron × sekimori Komatsu
913. Rhododendron selense Franch.
914. Rhododendron semibarbatum Maxim.
915. Rhododendron semnoides Tagg & Forrest
916. Rhododendron seniavinii Maxim.
917. Rhododendron seranicum J.J.Sm.
918. Rhododendron serotinum Hutch.
919. Rhododendron serpyllifolium (A.Gray) Miq.
920. Rhododendron serrulatum (Small) Millais
921. Rhododendron sessilifolium J.J.Sm.
922. Rhododendron setiferum Balf.f. & Forrest
923. Rhododendron setosum D.Don
924. Rhododendron shanii W.P.Fang
925. Rhododendron shaoakouense S.S.Ying
926. Rhododendron × sheilae Sleumer
927. Rhododendron sherriffii Cowan
928. Rhododendron shimenense Q.X.Liu & C.M.Zhang
929. Rhododendron shimianense W.P.Fang & P.S.Liu
930. Rhododendron shingbae C.S.Purohit & Ram.Kumar
931. Rhododendron shweliense Balf.f. & Forrest
932. Rhododendron sichotense Pojark.
933. Rhododendron sidereum Balf.f.
934. Rhododendron siderophyllum Franch.
935. Rhododendron sikangense W.P.Fang
936. Rhododendron sikayotaizanense Masam.
937. Rhododendron × silvicola (Sleumer) Argent, A.Lamb, Phillipps & Collen.
938. Rhododendron simiarum Hance
939. Rhododendron simsii Planch. Plant FAQs: Rhododendron Simsii
940. Rhododendron simulans J.J.Sm. ex Sleumer
941. Rhododendron sinofalconeri Balf.f.
942. Rhododendron sinogrande Balf.f. & W.W.Sm.
943. Rhododendron × sinosimulans D.F.Chamb.
944. Rhododendron siobriense Argent
945. Rhododendron smirnowii Trautv. ex Regel
946. Rhododendron smokianum Ralf Bauer & Albach
947. Rhododendron × sochadzeae Kharadze & Davlian.
948. Rhododendron sohayakiense Y.Watan. & T.Yukawa
949. Rhododendron sojolense Argent
950. Rhododendron solitarium Sleumer
951. Rhododendron sophistarum Craven
952. Rhododendron sororium Sleumer
953. Rhododendron souliei Franch.
954. Rhododendron spanotrichum Balf.f. & W.W.Sm.
955. Rhododendron sparsifolium W.P.Fang
956. Rhododendron spathulatum Ridl.
957. Rhododendron sperabile Balf.f. & Farrer
958. Rhododendron sperabiloides Tagg & Forrest
959. Rhododendron sphaeroblastum Balf.f. & Forrest
960. Rhododendron spiciferum Franch.
961. Rhododendron spilotum Balf.f. & Farrer
962. Rhododendron spinuliferum Franch.
963. Rhododendron spondylophyllum F.Muell.
964. Rhododendron stamineum Franch.
965. Rhododendron stanleyi S.James & Argent
966. Rhododendron stapfianum Hemsl. ex Prain
967. Rhododendron starlingii Rushforth & N.T.T.Huong
968. Rhododendron stelligerum Sleumer
969. Rhododendron stenopetalum (R.Hogg) Mabb.
970. Rhododendron stenophyllum Hook.f. ex Stapf
971. Rhododendron stevensianum Sleumer
972. Rhododendron stewartianum Diels
973. Rhododendron stolleanum Schltr.
974. Rhododendron stresemannii J.J.Sm.
975. Rhododendron strigillosum Franch.
976. Rhododendron strigosum R.L.Liu
977. Rhododendron suaveolens Sleumer
978. Rhododendron subansiriense D.F.Chamb. & Cox
979. Rhododendron subcerinum P.C.Tam
980. Rhododendron subcrenulatum Sleumer
981. Rhododendron subenerve P.C.Tam
982. Rhododendron subestipitatum P.C.Tam
983. Rhododendron subflumineum P.C.Tam
984. Rhododendron subpacificum Sleumer
985. Rhododendron subroseum Xiang Chen & Jia Y.Huang
986. Rhododendron subsessile Rendle
987. Rhododendron subulatum (Nakai) Harmaja
988. Rhododendron subuliferum Sleumer
989. Rhododendron subulosum J.J.Sm. ex Sleumer
990. Rhododendron succothii Davidian
991. Rhododendron sugaui Argent
992. Rhododendron sulfureum Franch.
993. Rhododendron sumatranum Merr.
994. Rhododendron × sundarraianum Sherpa & Gogoi
995. Rhododendron suoilenhense D.F.Chamb., N.T.T.Huong & Rushforth
996. Rhododendron superbum Sleumer
997. Rhododendron sutchuenense Franch.
998. Rhododendron syringoideum Sleumer
999. Rhododendron taggianum Hutch.
1000. Rhododendron taibaiense Ching & H.P.Yang
1001. Rhododendron taiense Hutch.
1002. Rhododendron taipaoense T.C.Wu & P.C.Tam
1003. Rhododendron taishunense B.Y.Ding & Y.Y.Fang
1004. Rhododendron taiwanalpinum Ohwi
1005. Rhododendron × takahashianum Sugim.
1006. Rhododendron takeuchii Argent
1007. Rhododendron taliense Franch.
1008. Rhododendron tanastylum Balf.f. & Kingdon-Ward
1009. Rhododendron tapetiforme Balf.f. & Kingdon-Ward
1010. Rhododendron taronense Hutch.
1011. Rhododendron tashiroi Maxim.
1012. Rhododendron tatsienense Franch.
1013. Rhododendron × tatuoi Nakai ex H.Hara
1014. Rhododendron taxifolium Merr.
1015. Rhododendron taxoides J.J.Sm.
1016. Rhododendron telmateium Balf.f. & W.W.Sm.
1017. Rhododendron temenium Balf.f. & Forrest
1018. Rhododendron tenuifolium R.C.Fang & S.H.Huang
1019. Rhododendron tenuilaminare P.C.Tam
1020. Rhododendron tephropeploides R.A.Baines & D.F.Chamb.
1021. Rhododendron tephropeplum Balf.f. & Farrer
1022. Rhododendron tetramerum (Makino) Nakai
1023. Rhododendron thaumasianthum Sleumer
1024. Rhododendron thayerianum Rehder & E.H.Wilson
1025. Rhododendron thomsonii Hook.f.
1026. Rhododendron thymifolium Maxim.
1027. Rhododendron tianlinense P.C.Tam
1028. Rhododendron tianmenshanense C.L.Peng & L.H.Yan
1029. Rhododendron tingwuense P.C.Tam
1030. Rhododendron tintinnabellum Danet
1031. Rhododendron titapuriense A.A.Mao, K.N.E.Cox & D.F.Chamb.
1032. Rhododendron tjiasmantoi Mustaqim, Mambrasar & Hutabarat
1033. Rhododendron tolmachevii Harmaja
1034. Rhododendron tomentosum Harmaja
1035. Rhododendron torajaense Craven
1036. Rhododendron torquescens D.F.Chamb.
1037. Rhododendron tosaense Makino
1038. Rhododendron toxopei J.J.Sm.
1039. Rhododendron traillianum Forrest & W.W.Sm.
1040. Rhododendron trancongii Argent & Rushforth
1041. Rhododendron × transiens Nakai
1042. Rhododendron trichanthum Rehder
1043. Rhododendron trichocladum Franch.
1044. Rhododendron trichogynum L.C.Hu
1045. Rhododendron × trichophorum Balf.f.
1046. Rhododendron trichostomum Franch.
1047. Rhododendron triflorum Hook.f.
1048. Rhododendron trilectorum Cowan
1049. Rhododendron trinerve Franch. ex H.Boissieu
1050. Rhododendron triumphans Yersin & A.Chev.
1051. Rhododendron truncatovarium L.M.Gao & D.Z.Li
1052. Rhododendron truncicola Sleumer
1053. Rhododendron tsaii W.P.Fang
1054. Rhododendron tsariense Cowan
1055. Rhododendron tschonoskii Maxim.
1056. Rhododendron tsinlingense W.P.Fang ex J.Q.Fu
1057. Rhododendron tsoi Merr.
1058. Rhododendron tsurugisanense (T.Yamaz.) T.Yamaz.
1059. Rhododendron tsusiophyllum Sugim.
1060. Rhododendron tuba Sleumer
1061. Rhododendron tuberculiferum J.J.Sm.
1062. Rhododendron tubiforme (Cowan & Davidian) Davidian
1063. Rhododendron tuhanense Argent & T.J.Barkman
1064. Rhododendron tutcherae Hemsl. & E.H.Wilson
1065. Rhododendron ultimum Wernham
1066. Rhododendron unciferum P.C.Tam
1067. Rhododendron ungeonticum A.P.Khokhr. & Mazurenko
1068. Rhododendron ungernii Trautv. ex Regel
1069. Rhododendron uniflorum Hutch. & Kingdon-Ward
1070. Rhododendron urophyllum W.P.Fang
1071. Rhododendron uvariifolium Diels
1072. Rhododendron uwaense H.Hara & T.Yamanaka
1073. Rhododendron vaccinioides Hook.f.
1074. Rhododendron valentinianum Forrest ex Hutch.
1075. Rhododendron vanderbiltianum Merr.
1076. Rhododendron × vanhoeffenii Abrom.
1077. Rhododendron vaniotii H.Lév.
1078. Rhododendron vanvuurenii J.J.Sm.
1079. Rhododendron × variolosum Becc.
1080. Rhododendron vaseyi A.Gray
1081. Rhododendron veitchianum Hook.
1082. Rhododendron vellereum Hutch. ex Tagg
1083. Rhododendron venator Tagg ex L.Rothsch.
1084. Rhododendron vernicosum Franch.
1085. Rhododendron verruciferum W.K.Hu
1086. Rhododendron × verruculosum Rehder & E.H.Wilson
1087. Rhododendron versteegii J.J.Sm.
1088. Rhododendron verticillatum H.Low ex Lindl.
1089. Rhododendron vesiculiferum Tagg
1090. Rhododendron vialii Delavay & Franch.
1091. Rhododendron vidalii Rolfe
1092. Rhododendron villosulum J.J.Sm.
1093. Rhododendron vinicolor Sleumer
1094. Rhododendron vinkii Sleumer
1095. Rhododendron virgatum Hook.f.
1096. Rhododendron viridescens Hutch.
1097. Rhododendron viriosum Craven
1098. Rhododendron viscidifolium Davidian
1099. Rhododendron viscidum C.Z.Guo & Z.H.Liu
1100. Rhododendron viscigemmatum P.C.Tam
1101. Rhododendron viscistylum Nakai
1102. Rhododendron viscosum (L.) Torr. Plant FAQs: Rhododendron Viscosum – Swamp Azalea
1103. Rhododendron vitis-idaea Sleumer
1104. Rhododendron wadanum Makino
1105. Rhododendron walongense Kingdon-Ward
1106. Rhododendron wardii W.W.Sm.
1107. Rhododendron wasonii Hemsl. & E.H.Wilson
1108. Rhododendron watsonii Hemsl. & E.H.Wilson
1109. Rhododendron wattii Cowan
1110. Rhododendron websterianum Rehder & E.H.Wilson
1111. Rhododendron × welleslyanum Waterer ex Rehder
1112. Rhododendron wentianum Koord.
1113. Rhododendron westlandii Hemsl.
1114. Rhododendron weyrichii Maxim.
1115. Rhododendron whiteheadii Rendle
1116. Rhododendron widjajae Argent & Mambrasar
1117. Rhododendron wightii Hook.f.
1118. Rhododendron × wilhelminae Hochr.
1119. Rhododendron wilkiei Argent
1120. Rhododendron williamsianum Rehder & E.H.Wilson
1121. Rhododendron williamsii Merr. ex H.F.Copel.
1122. Rhododendron wiltonii Hemsl. & E.H.Wilson
1123. Rhododendron wolongense W.K.Hu
1124. Rhododendron womersleyi Sleumer
1125. Rhododendron wongii Hemsl. & E.H.Wilson
1126. Rhododendron wrayi King & Gamble
1127. Rhododendron wrightianum Koord.
1128. Rhododendron wumingense W.P.Fang
1129. Rhododendron wuyishanicum L.K.Ling
1130. Rhododendron × xanthanthum (Tagg & Forrest) D.F.Chamb.
1131. Rhododendron xanthopetalum Merr.
1132. Rhododendron xanthostephanum Merr.
1133. Rhododendron xenium Gill.K.Br. & Craven
1134. Rhododendron xiangganense X.F.Jin & B.Y.Ding
1135. Rhododendron xiaoxidongense W.K.Hu
1136. Rhododendron xiaoxueshanense R.L.Liao & Y.P.Ma
1137. Rhododendron xichangense Z.J.Zhao
1138. Rhododendron xiguense Ching & H.P.Yang
1139. Rhododendron xishuiense C.H.Yang & C.D.Yang
1140. Rhododendron yakuinsulare Masam.
1141. Rhododendron yakumontanum (T.Yamaz.) T.Yamaz.
1142. Rhododendron yakushimanum Nakai
1143. Rhododendron yakushimense (M.Tash. & H.Hatta) Craven
1144. Rhododendron yangmingshanense P.C.Tam
1145. Rhododendron yaogangxianense Q.X.Liu
1146. Rhododendron yaoshanense L.M.Gao & S.D.Zhang
1147. Rhododendron yaoshanicum W.P.Fang & M.Y.He
1148. Rhododendron yedoense Maxim. ex Regel
1149. Rhododendron yelliottii Warb.
1150. Rhododendron yizhangense Q.X.Liu
1151. Rhododendron yongii Argent
1152. Rhododendron yungchangense Cullen
1153. Rhododendron yungningense Balf.f. ex Hutch.
1154. Rhododendron yunnanense Franch.
1155. Rhododendron yunyianum X.F.Jin & B.Y.Ding
1156. Rhododendron yushuense Z.J.Zhao
1157. Rhododendron zaleucum Balf.f. & W.W.Sm.
1158. Rhododendron zekoense Y.D.Sun & Z.J.Zhao
1159. Rhododendron zhangjiajieense C.L.Peng & L.H.Yan
1160. Rhododendron zheguense Ching & H.P.Yang
1161. Rhododendron zhongdianense L.C.Hu
1162. Rhododendron ziyuanense P.C.Tam
1163. Rhododendron zoelleri Warb.
1164. Rhododendron zollingeri J.J.Sm.