Solanum nigrescens

Anthers 1.7 mm or more in length; dull black or green mature fruit; calyx adhering to fruit; fruiting pedicels noticably deflexed; plants of highlands.

Herb, up to 1 m high; young stems pilose.  Leaves in pairs or solitary, of different sizes but similar appearance, entire or sinuate-dentate, ovate to ovate-lanceolate; apex acuminate, base attenuate.  Inflorescences internodal, racemose or subumbellate; corolla white or lilac, with a dark spot at the base of each lobe.  Fruit globose, 4-7 mm in diameter.

Simarouba amara

Small or medium-sized tree,6-30 m high, glabrous.  Leaves alternate, compound; leaflets 8-15 subcoriaceous, oblong, round at the apex, cuneate at the base, green on the upper side, pale or glaucous on the underside.  Panicles very ramified; flowers numerous, whitish, densely clustered on branches.  Drupe oval to oblong-oval, bright red, black when ripe, with thin white pulp.

Senna alata

A short-lived shrub up to 3 m high.  Leaves alternate, compound pinnate, with 6-12 pairs of broadly oblong leaflets, blunt at the tip, unequal at the base, the terminal pair about 15 x 8 cm; inflorescence an axillary, compact raceme ca. 28 cm long; flowers golden yellow, subtended by a yellow-orange bract, 2.2 -2.5 cm long; pod 4-winged, 11-19 x 2-2.3 cm, black when ripe; seeds ca. 6 mm long, brown, angular, arranged transversely in the pod.

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