Cyanotis is a genus of mainly perennial plants in the family Commelinaceae, first described in 1825. Species of the genus are native to Africa, southern Asia, and northern Australia.Kew World Checklist of Selected Plant FamiliesFlora of China Vol. 24 Page 21 蓝耳草属 lan er cao shu Cyanotis D. Don, Prodr. Fl. Nepal. 45. 1825. Dyer, R. Allen, “The Genera of Southern African Flowering Plants”. , 1975Faden, R. (2012). Commelinaceae. Flora of Tropical East Africa: 1-244.Arnold T.H., de Wet B.C. (Eds), Plants of Southern Africa: Names & Distribution, MEMOIRS OF THE BOTANICAL SURVEY OF SOUTH AFRICA No. 62, Pub.National Botanical Institute, South Africa.1993
Species 51 species are accepted. Cyanotis adscendens Dalzell – India, Sri Lanka Cyanotis ake-assii Brenan – Mali, Ivory Coast Cyanotis angusta C.B.Clarke – West Africa Cyanotis arachnoidea C.B.Clarke – tropical Africa, Indian Subcontinent, southern China, Indochina Cyanotis arcotensis R.S.Rao – southern India Cyanotis axillaris (L.) D.Don ex Sweet – Indian Subcontinent, southern China, Southeast Asia, Northern Australia Cyanotis beddomei (Hook.f.) Erhardt, Götz & Seybold – southern India Cyanotis burmanniana Wight – India, Sri Lanka, Myanmar Cyanotis caespitosa Kotschy & Peyr. – tropical Africa Cyanotis ceylanica Hassk. – Sri Lanka Cyanotis cristata (L.) D.Don – Indian Subcontinent, southern China, Southeast Asia, Ethiopia, Socotra, Mauritius, Java, Philippines Cyanotis cucullata (Roth) Kunth – southern India, Myanmar, Thailand Cyanotis cupricola J.Duvign. – Zaïre Cyanotis deccanensis – southern India (Andhra Pradesh) Cyanotis dybowskii Hua – Congo-Brazzaville, Central African Republic Cyanotis epiphytica – southern India Cyanotis fasciculata (B.Heyne ex Roth) Schult. & Schult.f. – Indian Subcontinent Cyanotis flexuosa C.B.Clarke – Huíla region of Angola Cyanotis foecunda DC. ex Hassk – central + eastern Africa and Yemen Cyanotis ganganensis Schnell – Guinea Cyanotis grandidieri H.Perrier – Madagascar Cyanotis hepperi Brenan – Nigeria Cyanotis homblei De Wild. – Zaïre Cyanotis karliana Hassk. – southern India Cyanotis kawakamii – southern Taiwan Cyanotis lanata Benth. – tropical + southern Africa, Yemen Cyanotis lanceolata – southern India and Sri Lanka Cyanotis lapidosa E.Phillips – South Africa, Eswatini Cyanotis longifolia Benth. – tropical Africa Cyanotis loureiroana (Schult. & Schult.f.) Merr. – Guangdong, Hainan, Vietnam Cyanotis lourensis Schnell – Guinea Cyanotis moluccana (Roxb.) Merr. – Malesia and New Guinea Cyanotis nyctitropa Deflers – Yemen and Saudi Arabia Cyanotis obtusa (Trimen) Trimen - southern India and Sri Lanka Cyanotis pachyrrhiza Oberm. – Transvaal Cyanotis paludosa Brenan – Zaïre, Kenya, Uganda, Tanzania Cyanotis pedunculata Merr. – Leyte Island in Philippines Cyanotis pilosa Schult. & Schult.f. – southern India and Sri Lanka Cyanotis polyrrhiza Hochst. ex Hassk. – Ethiopia Cyanotis repens Faden & D.M.Cameron – Zaïre, Kenya, Rwanda, Tanzania, Gabon Cyanotis reutiana Beauverd – southern India Cyanotis robusta Oberm. – Transvaal, Namibia Cyanotis scaberula Hutch. – Guinea Cyanotis somaliensis C.B.Clarke – Somalia Cyanotis speciosa (L. f.) Hassk. – central + southern Africa and Madagascar Cyanotis thwaitesii Hassk. – India, Sri Lanka, Myanmar Cyanotis tuberosa (Roxb.) Schult. & Schult.f. – western India Cyanotis vaga (Lour.) Schult. & Schult.f. – tropical Africa, Yemen, Himalayas, southern China, Indochina, and Java Cyanotis villosa (Spreng.) Schult. & Schult.f. – southern India and Sri Lanka Cyanotis vivipara Dalzell – southern India
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