Lasia

Lasia
	Lasia spinosa
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Alismatales
Family:	Araceae
Subfamily:	Lasioideae
Genus:	Lasia; Lour.
Synonyms[1]
	Lasius Hassk.

Lasia is a genus of flowering plants in the family Araceae, native to Asia and New Guinea. The genus contains only two known species, Lasia spinosa and Lasia concinna.[1][2][3] 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.[4] Prior to 1997, the specimen was believed to have been a hybrid between Lasia spinosa and Cyrtosperma merkusii.[5] The subsequent discovery by Hambali and Sizemore led to the realization that it was in fact a distinct species.[6][7]

Lasia concinna Alderw. - West Kalimantan
Lasia spinosa (L.) Thwaites - China (including Taiwan and Tibet), Indian Subcontinent, Indochina, Malaysia, Indonesia, New Guinea

References

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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[asdfkajsdfljasertert-1] Kew World Checklist of Selected Plant Families

[2] 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

[3] Flora of China, Vol. 23 Page 16 刺芋属 ci yu shu, Lasia Loureiro, Fl. Cochinch. 1: 64, 81. 1790.

[4] Alderwerelt van Rosenburgh, Cornelis Rugier Willem Karel van. 1920. Bulletin du Jardin Botanique de Buitenzorg 1: 379

[5] Hay, A. (1990). Aroids of Papua New Guinea. Christensen Research Center

[6] Bown, Demi (2000). Aroids: Plants of the Arum Family. Timber Press. ISBN 0-88192-485-7.

[7] Hambali, G. G. and Sizemore, M. (1997). The rediscovery of Lasia concinna Alderw. (Araceae: Lasioideae) in West Kalimantan, Borneo. Aroideana 20: 37-39.