Madagascar rubbervine

Description:

Branches glabrous to hairy, usually with few conspicuous lenticels. Leaf blade usually oblong or elliptic to ovate, sometimes broadly ovate to rarely obovate or almost orbicular, 2-11 × 1.5-5.5 cm, almost truncate to usually tapering at base, usually acuminate at apex, glabrous to hairy below or on both sides or along veins only; petiole 3-10 mm long, glabrous to hairy. Internodes of cymes 5-15 mm long; pedicels 3-7 mm long, usually hairy; bracts 2-7 mm long. Calyx lobes narrowly ovate to elliptic, 5.7-12.8 × 2.7-5.4 mm, with non-reflexed margins. Corolla tube (9-)15-25 mm long; lobes (20-)25-44 × (8-)14-26 mm. Corona lobes 6-9 mm high, entire. Staminal cone 3.2-5.2 mm high; anthers 2.7- 4.5 mm. Translator spathe ovate, 1.3-1.8 mm long, acute at the apex. Style 1.3-3.4 mm long; style including style head 4.8-6.8 mm long. Follicles (5-)7-9 × 1-3 cm, glabrous to finely pubescent. Seeds 5-8 mm long; hairs 2-3 cm long

Habitat:

It is found from sea level up to 700m altitude. It grows in dry forest, savannah, tsingy, disturbed grazed grassland and on lateritic soil and sand, often on river beds, and usually in full sunlight.