Plant Family: Joinvilleaceae – Genus Joinvillea

Plant Family: 4 Genera in Ixonanthaceae

Plant Family: Ixioliriaceae – Genus Ixiolirion

Plant Family: 2 Genera in Iteaceae

Plant Family: 4 Genera in Irvingiaceae

Plant Family: 69 Genera in Iridaceae

Plant Family: 23 Genera in Icacinaceae

Plant Family: 5 Genera in Hypoxidaceae

Plant Family: 6 Genera in Hypericaceae

Plant Family: Hydrostachyaceae – Genus Hydrostachys

Plant Family: Hydroleaceae – Genus Hydrolea

Plant Family: 14 Genera in Hydrocharitaceae

Plant Family: 2 Genera in Lepidobotryaceae

Plant Family: 3 Genera in Lentibulariaceae

Plant Family: 26 Genera in Lecythidaceae

Plant Family: 58 Genera in Lauraceae

Plant Family: 7 Genera in Lardizabalaceae

Plant Family: Lanariaceae – Lanaria Lanata in Genus Lanaria

Plant Family: 225 Genera in Lamiaceae

Plant Family: 2 Genera in Lacistemataceae

Plant Family: Krameriaceae – Genus Krameria

Plant Family: Koeberliniaceae – 2 Species in Genus Koeberlinia

Plant Family: Kirkiaceae – Genus Kirkia

Plant Family: Kewaceae – Genus Kewa