Acalypha siamensis Oliv. ex Gage
A. evrardii Gagnep., A. sphenophylla Pax & K. Hoffm.
|Malaysia||Teh hutan, teh kampung, tumput.|
|Indonesia||Pokok teh (Sumatra), teh-tehan (Javanese).|
|Thailand||Cha-khoi (Northern), cha-ruesei (Central), phakduk (South-western).|
|Vietnam||tr[af] c[oj]c r[af]o, tai t[uw][owj]ng xi[ee]m, ch[ef] m[ax]n h[ar]o.|
Native in Peninsular Malaysia, Burma (Myanmar), Thailand, Cambodia, Laos and Vietnam and currently cultivated in Thailand, peninsular Malaysia and Indonesia.
Acalypha siamensis is a shrub or small scrambling tree that can grow up to 4 m tall.The leaves are rhombic-lance-shaped, measuring 2-10 cm x 1-5 cm, serrate margin, hairless while the petiole is less than 1 cm long.
The inflorescence is axillary, racemose-spicate, bisexual and up to 5 cm long while the upper part with 2-3 female flowers at the base and enclosed in a large herbaceous bract.
The fruit is measures 2.5 mm long and covered with long protuberances.
A. siamensis is locally common in dry evergreen or mixed forest or scrub vegetation, often on sandy soils, sometimes on limestone up to 400 m altitude.