Amorphophallus pusillus is a perennial herbaceous flowering plant in the family Araceae.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. It is endemic to Vietnam.Nguyễn Văn Du (2017). Thực Vật Chí Việt Nam. Flora of Vietnam 16: 1-458. Nhà xuất bản khoa học và kỹ thuật, Hà Nội.
A. pusillus is a tuberous geophyte and grows primarily in the wet tropical areas. It is the smallest member of the genus, with a spathe 2–2.8 long and 2.5–3.2 cm diameter, and a spadix 4.4–5.7 cm long.
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