Oldenlandia affinis (PROSEA)

Plant Resources of South-East Asia Introduction

List of species

Oldenlandia affinis (Roemer & Schultes) DC.

Protologue: Prodr. 4: 428 (1830).

Synonyms

• Hedyotis affinis Roemer & Schultes (1818),
• Hedyotis dichotoma Heyne ex Roth (1821),
• Oldenlandia dichotoma (Heyne ex Roth) Hook.f. (1880).

Vernacular names

• Thailand: ya thopthaep (Tak).

Distribution

Tropical Africa, Madagascar, the Comoro Islands, India, Thailand, Peninsular Malaysia and Singapore.

Uses

O. affinis was reported to be used medicinally in Peninsular Malaysia, without specification.

Observations

• A slender much-branched annual or perennial herb up to 50(-120) cm long.
• Leaves narrowly oblong-lanceolate to linear, up to 3(-6) cm long.
• Flowers in a lax paniculate cyme, dichotomously branched, corolla with spreading lobes, bluish or pinkish-white.
• Fruit subglobular.

O. affinis occurs in Malaysia in dry, often sandy locations, usually near the sea; in India it is commonly found on slopes of hills up to 1200 m altitude.

Selected sources

• [202] Burkill, I.H., 1966. A dictionary of the economic products of the Malay Peninsula. Revised reprint. 2 volumes. Ministry of Agriculture and Co-operatives, Kuala Lumpur, Malaysia. Vol. 1 (A-H) pp. 1-1240. Vol. 2 (I-Z) pp. 1241-2444.
• [921] Matthew, K.M., 1981-1988. The flora of the Tamilnadu Carnatic. 4 volumes. The Rapinat Herbarium, St. Joseph's College, Tiruchirapalli, India.

Main genus page

• Oldenlandia (Medicinal plants)

Authors

• N.O. Aguilar & R.H.M.J. Lemmens