Mimosa pigra var. pigra

Stems densely strigose; prickles recurved, brownish. Leaves: stipules widely lanceolate to ovate, 3–5 mm, not striate, densely strigose to pubescent; petiole 0.5–2 cm; primary rachis 8–15(–17) cm; pinnae 8–14 pairs; leaflets 20–40 pairs, blades obliquely linear-oblong, 4–9 × 0.5–2 mm, apex mucronulate, abaxial surface glabrous or pubescent. Peduncles 2–5 cm. Capitula 10–18 mm diam.; bracts linear-lanceolate, 1/2–3/4 corolla length. Flowers: calyx irregularly laciniate, 1/4–1/2 corolla length; corolla lobes densely strigose. Legumes sessile, 40–120 × 9–13 mm, segments 15–25, margin densely setose, apex apiculate, faces densely setose. Seeds 6–6.5 × 2–2.5 × 1–1.5 mm.

Phenology: Flowering Jul; fruiting Jul–Aug.
Habitat: Canal ditch banks, blackish water, mangroves.
Elevation: 0–40 m.

Distribution

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Fla., Mexico, Central America, South America, Africa, introduced in tropical Asia, Australia.

Discussion

The typical variety, registered as Mimosa pellita in the USDA Plants website, is included as present in Texas. However, material of this plant from Texas has not been seen. The variety is considered a weed in Florida and Australia.

Selected References

None.

Lower Taxa

None.