Alternanthera brasiliana (PROSEA)
Alternanthera brasiliana (Torner) O. Kuntze
- Protologue: Revis. gen. pl. 2: 537 (1891).
Alternanthera strigosa Hassk. (1839).
Native of tropical America; introduced and naturalized in western and central Java.
A. brasiliana might be useful as an antiviral agent.
A perennial herb up to 3 m tall, decumbent at base, ascending-erect or clambering higher up, often widely branched, stems solid; hairs minutely dentate; leaves ovate-lanceolate, 3.5-10 cm × 1-4 cm, densely appressed pilose on both surfaces when young but later slowly glabrescent, petiole 0.5-1.5 cm long; flowering heads stalked; tepals strongly 3-veined, yellowish-white, filaments united at base into a distinct tube; fruit ellipsoidal, about 2 mm long. A. brasiliana occurs locally gregariously in Java, on moist, shaded localities on ravine slopes and stream banks, at 200-600 m altitude.
47, 93, 97, 773, 805, 1056.
R.H.M.J. Lemmens & S.F.A.J. Horsten