Swaziland's Flora Database:
Ocimum americanum L. var. americanum
(name current 2016)
Growth form: Herb
Found within protected areas
Description (Compton's Flora of Swaziland*):
Ocimum canum - Small erect somewhat woody, wide-branching, very thinly downy throughout, mint-scented. Leaf stalk slender, up to 1 cm long, blade lance-shaped, c 3 cm long X 1 cm wide, toothless or occasionally with few minute teeth; leafy short shoots arise in axils. Inflorescence long and slender, sometimes with pair of branches at base, up to 20 cm long; flower-clusters numerous, well-spaced, each axillary group with about three flowers; stalk c 1 mm long. Calyx at flowering time c 3 mm long, with straight white hairs, enlarging in fruit to c 5 mm long and losing its hairs, back lobe much broader than others, arched, its edge turned back, net-veined; corolla white, c 5 mm long, upper lip flat, equally four-lobed.
* Where species names have changed, these have been matched according to herbarium specimens quoted in this publication.