Wrightia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1810. It native to tropical Africa, China, the Indian Subcontinent, Southeast Asia, Papuasia, and Australia. The species are all small trees or shrubs. The genus was named for William Wright (1735-1819), Scottish physician and botanist, by Robert Brown. Wrightia antidysenterica has long been known in Indian Ayurvedic tradition, and is called "kuţaja" in Sanskrit.

Species

Plants of the World Online includes: • # Wrightia angustifolia Thwaites - Sri Lanka • # Wrightia annamensis Eberh. & Dubard - S China, Cambodia, Vietnam • # Wrightia antidysenterica (L.) R.Br.

• Sri Lanka • # Wrightia arborea (Dennst.) Mabb.
• S China, India, Sri Lanka, Himalayas, Indochina • # Wrightia calcicola D.J.Middleton - Thailand • # Wrightia candollei S.Vidal - Philippines • # Wrightia coccinea (Roxb. ex Hornem.) Sims - S China, Himalayas, Indochina • # Wrightia collettii Ngan - Myanmar • # Wrightia demartiniana Chiov.
• Western Australia • # Wrightia dolichocarpa Bahadur & Bennet - Ethiopia, Somalia, Kenya • # Wrightia dubia (Sims) Spreng.
• W India • # Wrightia flavidorosea Trimen - Indochina, W Malaysia • # Wrightia hanleyi Elmer - Sri Lanka but extinct • # Wrightia indica Ngan - Palawan • # Wrightia karaketii D.J.Middleton - S India • # Wrightia kwangtungensis Tsiang - Thailand • # Wrightia laevis Hook.f. - S China, SE Asia, Papuasia, Queensland • # Wrightia lanceolata Kerr - S Thailand • # Wrightia lecomtei Pit.
• Cambodia, Vietnam • # Wrightia natalensis Stapf -southern Africa • # Wrightia novobritannica (Ngan) D.J.Middleton - New Britain • # Wrightia palawanensis D.J.Middleton - Palawan • # Wrightia poomae D.J.Middleton - Thailand • # Wrightia puberula (Thwaites) Ngan - Sri Lanka but extinct • # Wrightia pubescens R.Br.
• S China, SE Asia, Papuasia, N Australia • # Wrightia religiosa (Teijsm. & Binn.) Benth. ex Kurz - Guangdong, Indochina, W Malaysia • # Wrightia saligna (R.Br.) F.Muell. ex Benth.
• N Australia • # Wrightia siamensis D.J.Middleton - Thailand • # Wrightia sikkimensis Gamble - S China, E Himalayas, Vietnam • # Wrightia sirikitiae D.J.Middleton & Santisuk - Thailand • # Wrightia tinctoria (Roxb.) R.Br.
• India, Nepal, Myanmar, Vietnam, Timor and Australia • # Wrightia tokiae D.J.Middleton - Thailand • # Wrightia vietnamensis Hazell & D.J.Middleton - Vietnam • # Wrightia viridiflora Kerr - Thailand • # Wrightia afzelii, syn of Pleioceras afzelii • # Wrightia bacelliana, syn of Melodinus acutiflorus • # Wrightia parviflora, syn of Pleioceras barteri • # Wrightia piscidia, syn of Melodinus cochinchinensis • # Wrightia stuhlmannii, syn of Alafia lucida