225 Species in Genus Cerastium

My Fascination with Mouse-Ear Chickweed (Cerastium)

As a lifelong admirer of the natural world, I, Ferb Vu, find myself drawn to the unassuming beauty of even the most common plants. One genus that has particularly captured my attention is Cerastium, more affectionately known as mouse-ear chickweed. These delicate plants, with their small, white flowers and soft, hairy leaves, often go unnoticed, blending into the background of meadows and gardens. But upon closer inspection, their intricate details and resilience reveal a captivating charm.

Understanding the Cerastium Genus

Cerastium belongs to the Caryophyllaceae family, which also includes carnations and pinks. The genus boasts a diverse range of over 200 species, distributed across the globe, though they are most prevalent in the northern temperate regions. Their common name, “mouse-ear chickweed,” stems from the shape and texture of their leaves, which are often covered in fine hairs, resembling the ears of a mouse.

These plants are typically low-growing, forming mats or clumps of foliage. Their flowers, usually white but occasionally yellow, are small and delicate, with five petals that are often deeply notched, giving them a ten-petaled appearance. The flowers bloom from spring to summer, attracting pollinators like bees and butterflies.

Notable Cerastium Species

While the genus encompasses a vast number of species, some stand out due to their unique characteristics or widespread distribution. Here are:

  1. Cerastium afromontanum T.C.E.Fr.
  2. Cerastium akiyoshiense Kadota
  3. Cerastium aleuticum Hultén
  4. Cerastium alexeenkoanum Schischk.
  5. Cerastium alpinum L.
  6. Cerastium alsinifolium Tausch
  7. Cerastium alvandicum Poursakhi, Assadi & F.Ghahrem.
  8. Cerastium amanum P.H.Davis
  9. Cerastium andinum Benth.
  10. Cerastium apuanum Parl.
  11. Cerastium arabidis E.Mey. ex Fenzl
  12. Cerastium araraticum Rupr.
  13. Cerastium arcticum Lange
  14. Cerastium argenteum M.Bieb.
  15. Cerastium argentinum (Pax) F.N.Williams
  16. Cerastium armeniacum Gren.
  17. Cerastium arvense L.
  18. Cerastium assadii Poursakhi & F.Ghahrem.
  19. Cerastium atlanticum Durieu
  20. Cerastium axillare Correll
  21. Cerastium azerbaijanicum Poursakhi, Assadi & F.Ghahrem.
  22. Cerastium azoricum Hochst. ex Seub.
  23. Cerastium baischanense Y.C.Chu
  24. Cerastium banaticum (Rochel) Heuff.
  25. Cerastium barberi B.L.Rob.
  26. Cerastium bazofticum Poursakhi, Assadi & F.Ghahrem.
  27. Cerastium beeringianum Cham. & Schltdl.
  28. Cerastium behmianum Muschl.
  29. Cerastium bialynickii Tolm.
  30. Cerastium biebersteinii DC.
  31. Cerastium × blyttii Baenitz
  32. Cerastium boissierianum Greuter & Burdet
  33. Cerastium borisii Zakirov
  34. Cerastium brachypetalum Desp. ex Pers.
  35. Cerastium brachypodum (Engelm. ex A.Gray) B.L.Rob. ex Britton
  36. Cerastium brevicarpicum Rusby
  37. Cerastium × brueggerianum Dalla Torre & Sarnth.
  38. Cerastium bulgaricum Uechtr.
  39. Cerastium cacananense Möschl
  40. Cerastium candicans Wedd.
  41. Cerastium candidissimum Correns
  42. Cerastium capense Sond.
  43. Cerastium capillatum I.V.Sokolova
  44. Cerastium carinthiacum Vest
  45. Cerastium caucasicum Fisch. ex Ser.
  46. Cerastium chlorifolium Fisch. & C.A.Mey.
  47. Cerastium comatum Desv.
  48. Cerastium commersonianum Ser.
  49. Cerastium consanguineum Wedd.
  50. Cerastium crassipes Bartl.
  51. Cerastium crassiusculum Klokov
  52. Cerastium cuatrecasasii Sklenář
  53. Cerastium cuchumatanense D.A.Good
  54. Cerastium cylindricum Poursakhi & Assadi
  55. Cerastium dagestanicum Schischk.
  56. Cerastium danguyi J.F.Macbr.
  57. Cerastium davuricum Fisch. ex Spreng.
  58. Cerastium decalvans Schloss. & Vuk.
  59. Cerastium deschatresii Greuter, N.Böhling & Ralf Jahn
  60. Cerastium dichotomum L.
  61. Cerastium dicrotrichum Fenzl ex Rohrb.
  62. Cerastium diffusum Pers.
  63. Cerastium dinaricum Beck & Szyszył.
  64. Cerastium dominici Favarger
  65. Cerastium elbrusense Boiss.
  66. Cerastium elongatum Pursh
  67. Cerastium emesenum Mouterde
  68. Cerastium eriophorum Kit. ex Schult.
  69. Cerastium falcatum (Gren.) Bunge ex Fenzl
  70. Cerastium fastigiatum Greene
  71. Cerastium filifolium Vest
  72. Cerastium fischerianum Ser.
  73. Cerastium floccosum Benth.
  74. Cerastium fontanum Baumg. – Plant FAQs: Cerastium Fontanum
  75. Cerastium fragillimum Boiss.
  76. Cerastium furcatum Cham. & Schltdl.
  77. Cerastium gibraltaricum Boiss.
  78. Cerastium glabratum (Wahlenb.) Hartm.
  79. Cerastium glomeratum Thuill. – Plant FAQs: Cerastium Glomeratum
  80. Cerastium gnaphalodes Fenzl
  81. Cerastium gracile Dufour
  82. Cerastium grandiflorum Waldst. & Kit.
  83. Cerastium guatemalense Standl.
  84. Cerastium haussknechtii Boiss. & Hausskn.
  85. Cerastium hekuravense Jáv.
  86. Cerastium hemschinicum Schischk.
  87. Cerastium hintoniorum B.L.Turner
  88. Cerastium holosteoides Fr.
  89. Cerastium huadingense Y.F.Lu, W.Y.Xie & X.F.Jin
  90. Cerastium humifusum Cambess.
  91. Cerastium ibukiense (Ohwi) Kadota
  92. Cerastium igoschinae Pobed.
  93. Cerastium illyricum Ard.
  94. Cerastium imbricatum Kunth
  95. Cerastium inflatum Gren.
  96. Cerastium jiuhuashanense Gang Yao & J.W.Zhai
  97. Cerastium julicum Schellm.
  98. Cerastium junceum Möschl
  99. Cerastium juniperorum Standl. & Steyerm.
  100. Cerastium kasbek Parrot
  101. Cerastium krylovii Schischk. & Gorczak.
  102. Cerastium kunthii Briq.
  103. Cerastium lacaitae Barberis, Bechi & Miceli
  104. Cerastium × laestadianum H.Samzelius
  105. Cerastium lanceolatum (Poir.) Volponi
  106. Cerastium latifolium L.
  107. Cerastium lazicum Boiss.
  108. Cerastium ligusticum Viv.
  109. Cerastium limprichtii Pax & K.Hoffm.
  110. Cerastium lineare All.
  111. Cerastium lithospermifolium Fisch.
  112. Cerastium longifolium Willd.
  113. Cerastium macranthum Boiss.
  114. Cerastium macrocalyx Buschm.
  115. Cerastium madagascariense Pax
  116. Cerastium madrense S.Watson
  117. Cerastium malyi (T.Georgiev) Niketić
  118. Cerastium maximum L.
  119. Cerastium meridense Linden & Planch.
  120. Cerastium meyerianum Rupr.
  121. Cerastium microspermum C.A.Mey.
  122. Cerastium moesiacum Friv.
  123. Cerastium mollissimum Poir.
  124. Cerastium montioides Naudin
  125. Cerastium morrisonense Hayata
  126. Cerastium mucronatum Wedd.
  127. Cerastium multiflorum C.A.Mey.
  128. Cerastium nanhutashanense S.S.Ying
  129. Cerastium nanum Muschl.
  130. Cerastium nemorale M.Bieb.
  131. Cerastium neoscardicum Niketić
  132. Cerastium nigrescens (Edmondston ex H.C.Watson) H.C.Watson
  133. Cerastium novoguinense Gilli
  134. Cerastium nutans Raf.
  135. Cerastium octandrum Hochst. ex A.Rich.
  136. Cerastium odessanum Klokov
  137. Cerastium oreades Schischk.
  138. Cerastium orithales Schltdl.
  139. Cerastium × oxoniense Druce
  140. Cerastium papuanum Schltr. ex Mattf.
  141. Cerastium parvipetalum Hosok.
  142. Cerastium parvum (Pedersen) M.T.Sharples & E.A.Tripp
  143. Cerastium pauciflorum Steven ex Ser.
  144. Cerastium pedunculare Bory & Chaub.
  145. Cerastium pedunculatum Gaudin
  146. Cerastium perfoliatum L.
  147. Cerastium peruvianum Muschl.
  148. Cerastium pisidicum Ayasligil & Kit Tan
  149. Cerastium polymorphum Rupr.
  150. Cerastium ponticum Albov
  151. Cerastium porphyrii Schischk.
  152. Cerastium pospichalii Soldano & F.Conti
  153. Cerastium × pseudalpinum Murr
  154. Cerastium pumilum Curtis
  155. Cerastium purpurascens Adams
  156. Cerastium purpusii Greenm.
  157. Cerastium pusillum Ser.
  158. Cerastium pyrenaicum J.Gay
  159. Cerastium qingliangfengicum H.W.Zhang & X.F.Jin
  160. Cerastium ramigerum Bartl.
  161. Cerastium ramosissimum Boiss.
  162. Cerastium rectum Friv.
  163. Cerastium regelii Ostenf.
  164. Cerastium × richardsonii Druce
  165. Cerastium rivulare Cambess.
  166. Cerastium rivulariastrum Möschl & Pedersen
  167. Cerastium ruderale M.Bieb.
  168. Cerastium runemarkii Möschl & Rech.f.
  169. Cerastium saccardoanum Diratz.
  170. Cerastium scaposum Boiss. & Heldr.
  171. Cerastium scaranii Ten.
  172. Cerastium schizopetalum Maxim.
  173. Cerastium schmalhausenii Pacz.
  174. Cerastium selloi Schltdl. ex Rohrb.
  175. Cerastium semidecandrum L.
  176. Cerastium siculum Guss.
  177. Cerastium sinaloense D.A.Good
  178. Cerastium sinicum Nakai
  179. Cerastium smolikanum Hartvig
  180. Cerastium soleirolii Ser. ex Duby
  181. Cerastium soratense Rohrb.
  182. Cerastium sosnowskyi Schischk.
  183. Cerastium spathulatum Pers.
  184. Cerastium subciliatum Gartner
  185. Cerastium subpilosum Hayata
  186. Cerastium subspicatum Wedd.
  187. Cerastium subtetrandrum (Lange) Murb.
  188. Cerastium subtriflorum (Rchb.) Pancher
  189. Cerastium sugawarae Koidz. & Ohwi
  190. Cerastium supramontanum Arrigoni
  191. Cerastium sventenii Jalas
  192. Cerastium sylvaticum Waldst. & Kit.
  193. Cerastium × symei Druce
  194. Cerastium szechuense F.N.Williams
  195. Cerastium szowitsii Boiss.
  196. Cerastium takasagomontanum Masam.
  197. Cerastium taschkendicum Adylov & Vved.
  198. Cerastium tatrae Borbás
  199. Cerastium terrae-novae Fernald & Wiegand
  200. Cerastium texanum Britton
  201. Cerastium theophrasti Merxm. & Strid
  202. Cerastium thomasii Ten.
  203. Cerastium thomsonii Hook.f.
  204. Cerastium tianschanicum Schischk.
  205. Cerastium tolucense D.A.Good
  206. Cerastium tomentosum L. – Plant FAQs: Cerastium Tomentosum – Snow-in-Summer
  207. Cerastium transsilvanicum Schur
  208. Cerastium trianae Briq.
  209. Cerastium trichocalyx Muschl.
  210. Cerastium × triculinum A.Nyár. & Prodan
  211. Cerastium undulatifolium Sommier & Levier
  212. Cerastium uniflorum Clairv.
  213. Cerastium utriense Barberis
  214. Cerastium vagans Lowe
  215. Cerastium velutinum Raf.
  216. Cerastium venezuelanum Briq.
  217. Cerastium verecundum Ravenna
  218. Cerastium verticifolium R.L.Dang & X.M.Pi
  219. Cerastium viride A.Heller
  220. Cerastium viscatum (Montel.) Jalas
  221. Cerastium vourinense Möschl & Rech.f.
  222. Cerastium vulcanicum Schltdl.
  223. Cerastium wilhelmianum Sklenář
  224. Cerastium wilsonii Takeda
  225. Cerastium zhiguliense Saksonov

The Appeal of Cerastium

My fascination with Cerastium stems from several factors. Firstly, their understated beauty challenges the notion that only large, showy flowers are worthy of admiration. The delicate details of their flowers and the soft texture of their leaves offer a subtle charm that rewards close observation.

Secondly, their resilience and adaptability impress me. These plants can thrive in diverse environments, from alpine meadows to urban gardens. They tolerate a range of soil conditions and can even withstand drought. This hardiness speaks to their ability to persist in the face of challenges, a quality I find admirable.

Finally, their ecological role intrigues me. While often considered weeds, Cerastium species play a vital role in their ecosystems. They provide food and shelter for insects, contribute to soil health, and even offer erosion control. Recognizing their ecological value encourages a deeper appreciation for their presence.

Observing and Learning

I find immense satisfaction in observing Cerastium in its natural habitat. Whether I’m exploring a mountain trail or simply strolling through a local park, I always keep an eye out for these unassuming plants. Examining their growth patterns, noticing the subtle variations between species, and witnessing their interactions with other organisms provides a constant source of learning and wonder.

In my own garden, I’ve even embraced the presence of Cerastium fontanum, allowing it to grow in certain areas. While some may consider it a nuisance, I view it as an opportunity to observe its life cycle and appreciate its tenacity.

A Call to Appreciation

In a world that often prioritizes the flashy and the dramatic, I believe there’s value in appreciating the subtle beauty and resilience of plants like Cerastium. By taking the time to observe and understand these often-overlooked members of the plant kingdom, we can gain a deeper appreciation for the intricate interconnectedness of the natural world and the vital role that even the smallest organisms play.

I encourage everyone to take a closer look at the Cerastium growing in their surroundings. You might be surprised by the beauty and complexity you discover in these unassuming plants.

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