Lasia is a genus of flowering plants in the Araceae family, native to Asia and New Guinea. The genus contains only two known species, Lasia spinosa and Lasia concinna. Lasia was believed to be a monotypic genus until 1997 when a wild population of Lasia concinna was discovered in a farmer's paddy field in West Kalimantan, Indonesia. The farmer had been growing them for their edible young leaves. This species of Lasia had been known of previously only from a single specimen at the Bogor Botanic Gardens, formally described in 1920. Prior to 1997, the specimen was believed to have been a hybrid between Lasia spinosa and Cyrtosperma merkusii. The subsequent discovery by Hambali and Sizemore led to the realization that it was in fact a distinct species.
- Lasia concinna Alderw. - West Kalimantan
- Lasia spinosa (L.) Thwaites - China (including Taiwan and Tibet), Indian Subcontinent, Indochina, Malaysia, Indonesia, New Guinea
- Kew World Checklist of Selected Plant Families
- Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew
- Flora of China, Vol. 23 Page 16 刺芋属 ci yu shu, Lasia Loureiro, Fl. Cochinch. 1: 64, 81. 1790.
- Alderwerelt van Rosenburgh, Cornelis Rugier Willem Karel van. 1920. Bulletin du Jardin Botanique de Buitenzorg 1: 379
- Hay, A. (1990). Aroids of Papua New Guinea. Christensen Research Center
- Bown, Demi (2000). Aroids: Plants of the Arum Family. Timber Press. ISBN 0-88192-485-7.
- Hambali, G. G. and Sizemore, M. (1997). The rediscovery of Lasia concinna Alderw. (Araceae: Lasioideae) in West Kalimantan, Borneo. Aroideana 20: 37-39.
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