# Orthosiphon

Orthosiphon is a genus of plants in the family Lamiaceae native to Africa, Southern Asia and Queensland, with one species (O. americanus) in Colombia. They are herbaceous shrubs which grow to a height of 1.5 m (5 ft). Some Orthosiphon species are popular garden plants because of their flowers, which are white and bluish with filaments resembling a cat's whiskers. In the wild, the plants can be seen growing in forests and along roadsides.
Common names in Southeast Asia are Misai Kucing (Malaysia), Kumis Kucing and Remujung (Indonesia), and Yaa Nuat Maeo (Thailand).

## Species

* Orthosiphon adenocaulis A.J.Paton & Hedge - Madagascar
* Orthosiphon allenii (C.H.Wright) Codd - from Zaire + Tanzania to Zimbabwe
* Orthosiphon americanus Harley & A.J.Paton - Colombia
* Orthosiphon argenteus A.J.Paton & Hedge - Madagascar
* Orthosiphon aristatus aka Orthosiphon stamineus (Blume) Miq. - China, Indian Subcontinent, Southeast Asia, Queensland; naturalized in Fiji
* Orthosiphon biflorus A.J.Paton & Hedge - Madagascar
* Orthosiphon bullosus Chiov. - Somalia
* Orthosiphon cladotrichos Gürke - Tanzania
* Orthosiphon cuanzae (I.M.Johnst.) A.J.Paton - Angola
* Orthosiphon discolor A.J.Paton & Hedge - Madagascar
* Orthosiphon ellipticus A.J.Paton & Hedge - Madagascar
* Orthosiphon exilis A.J.Paton & Hedge - Madagascar
* Orthosiphon ferrugineus Balf.f. - Socotra
* Orthosiphon fruticosus Codd - Northern Province of South Africa
* Orthosiphon glandulosus C.E.C.Fisch - Assam, Ranong Province of southern Thailand
* Orthosiphon hanningtonii (Baker) A.J.Paton - Kenya, Tanzania
* Orthosiphon humbertii Danguy - Madagascar
* Orthosiphon incurvus Benth. in N.Wallich - Himalayas from Nepal to Myanmar
* Orthosiphon lanatus Doan ex Suddee & A.J.Paton - Vietnam
* Orthosiphon miserabilis A.J.Paton & Hedge - Madagascar
* Orthosiphon newtonii Briq. - Angola
* Orthosiphon nigripunctatus G.Taylor - Angola, Zambia
* Orthosiphon pallidus Royle ex Benth. - tropical + eastern Africa, Madagascar, Arabian Peninsula, India, Pakistan
* Orthosiphon parishii Prain - Myanmar, Thailand
* Orthosiphon parvifolius Vatke - Ethiopia, Tanzania, Kenya, Uganda
* Orthosiphon pseudoaristatus Suddee - Thailand
* Orthosiphon robustus Hook.f. - Assam
* Orthosiphon rotundifolius Doan ex Suddee & A.J.Paton - Thailand, Vietnam
* Orthosiphon ruber A.J.Paton & Hedge - Madagascar
* Orthosiphon rubicundus (D.Don) Benth. - southern China, Himalayas, Indochina
* Orthosiphon rufinervis G.Taylor - Angola, Zambia
* Orthosiphon sarmentosus A.J.Paton & Hedge - Madagascar
* Orthosiphon scapiger Benth. - Himalayas
* Orthosiphon scedastophyllus A.J.Paton - Tanzania, Mozambique
* Orthosiphon schimperi Benth. - tropical + southern Africa from Guinea to Somalia south to Transvaal
* Orthosiphon schliebenii A.J.Paton - Tanzania
* Orthosiphon thymiflorus (Roth) Sleesen - tropical Africa, Madagascar, Saudi Arabia, India, Sri Lanka, Indochina, Java
* †Orthosiphon truncatus Doan ex Suddee & A.J.Paton - Vietnam but believed to be extinct
* Orthosiphon vernalis Codd - Eswatini
* Orthosiphon violaceus Briq - Angola
* Orthosiphon wattii Prain - Assam
* Orthosiphon wulfenioides (Diels) Hand.-Mazz. - Guangxi, Guizhou, Sichuan, Yunnan
* Orthosiphon thymiflorus flower in Talakona forest, in Chittoor District of Andhra Pradesh, India
* Orthosiphon thymiflorus herb in Talakona forest, in Chittoor District of Andhra Pradesh, India