Alstonia angustifolia Wallich ex A.DC.
Family
Apocynaceae
Synonyms
A. latifolia Ridley, A. beccarii (Benth.) Pichon.
Vernacular Names
| Malaysia | Itai setapoh, pulai (Peninsular), mergalang (Sarawak). |
| Indonesia | Medang pasir (Bangka), pulai pipit (Palembang). |
| Vietnam | s[uwx]a l[as] h[ej]p, l[aas]c. |
Geographical Distributions
Peninsular Malaysia, Singapore, Sumatra, Bangka and Borneo.
Description
Alstonia angustifolia is a small to medium-sized tree and measuring up to 35(-45) m tall. The bole is fluted or with small or steep buttresses and measures up to 70 cm in diametre. The outer bark is smooth, fissured or scaly while the inner bark is yellowish and without latex.
The leaves are usually in whorls of 3, oblanceolate in shape, measuring 4-18 cm x 1.5-7 cm, acuminate, with 10-20 pairs of secondary veins while the petiole is measures 8-30 mm long.
The inflorescence is with many-flowered, measuring 0.5-2 mm long pedicel while the sepal and petal are densely hairy outside. The follicles are smooth.
Ecology / Cultivation
A. angustifolia occurs in primary forest, seasonal peat swamps or hillsides, on sandy or granitic soils at 5-750(-1700) m altitude.
Line Drawing / Photograph
References
- Plant Resources of South-East Asia No. 12 (2): Medicinal and poisonous plants.
