Swaziland's Alien Plants Database

Mimosa pigra L.
Giant sensitive plant
Invasive, Potential problem species
Origin: Tropical America (Mexico and Cuba to N Peru and NE Argentina); now pantropical
Growth Form: Tree/shrub
Plant Description: Plant: Shrub or tree to 6 m high; stems and leaves hairy, armed with thorns; stem thorns broad-based, up to 7 mm long. Leaves: Yellowish-green, 40–80 mm long, with a straight thorn at the junction of each of the 6–16 pinnae pairs; sometimes with thorns between the pairs; sensitive to touch. Flowers: Pink or mauve, in ± globose heads, borne singly or in groups of two or three, in upper leaf axils, October–May(–all year). Fruit: Brown, densely bristly pods, clustered, 30–80 mm long, breaking transversely into 12–26 segments, each containing a seed; the pod sutures remaining as an empty frame.
Key Features:
Comments: Suspected/Possible
More information:
Weeds & Invasive Plants Home Page

Photo - leaves

USDA APHIS - Oxford, North Carolina Archives

Photo - flowers/leaves

USDA APHIS - Oxford, North Carolina Archives

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