Nelsonia is a genus of plants in the family Acanthaceae. They can be found in tropical: Africa (including Madagascar), Latin America, south-east Asia and Australia.Genus Details Nelsonia R.Br., Royal Botanic Gardens, Kew. (retrieved 16 February 2011)
Species As of February 2024, Plants of the World Online accepts three species:Nelsonia R.Br. Plants of the World Online. Retrieved 6 February 2024. Nelsonia canescens (Lam.) Spreng. Nelsonia gracilis Vollesen Nelsonia smithii Oerst.
Synonyms and obsolete taxa The Plant List (9 October 2012) listed the following species names: Nelsonia albicans Kunth = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia brunelloides (Lam.) Kuntze = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia campestris R.Br. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia campestris var. vestita (Roem. & Schult.) C.B. Clarke = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia canescens var. smithii (Oerst.) E.Hossain = Nelsonia smithii Oerst. (1854) Nelsonia canescens var. vestita (Roem. & Schult.) E. Hossain = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia hirsuta (Vahl) Roem. & Schult. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia lamiifolia (Roxb.) Spreng. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia origanoides (Vahl) Roem. & Schult. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia pohlii Nees = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia rotundifolia R.Br. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia senegalensis Oerst. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia tomentosa A. Dietr. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia vestita Schult. = Nelsonia canescens (Lam.) Spreng. (1824) Nelsonia villosa Oerst. = Nelsonia canescens (Lam.) Spreng. (1824)
References The Plant List: Nelsonia (retrieved 22 November 2017)