Monographs Details: Mimosa occidentalis Britton & Rose var. occidentalis
Authors:Rupert C. Barneby
Authority: Barneby, Rupert C. 1991. Sensitivae Censitae. A description of the genus Mimosa Linnaeus (Mimosaceae) in the New World. Mem. New York Bot. Gard. 65: 1-835.
Synonyms:Mimosa occidentalis Britton & Rose
Description:Variety Description - Indumentum as given in key to varieties. Pods usually several per capitulum, sessile, in profile oblong, obtuse or minutely apiculate, 9-15 x 4.5-5 mm, (1—)2—3-seeded, the straight replum 0.450.6 mm wide, at maturity splitting apart at apex, the valves low-convex over each seed, the replum and valves alike densely hirsute with loose, forwardly curved, stramineous or bronzed, tapering setae resembling those of stem in length and diam., the papery valves breaking up when ripe into individually dehiscent articles ±3.5-5 mm long; seeds lenticular, in broad profile ±2.5- 3x3 mm, the testa dark brown, highly lustrous.
Distribution and Ecology - On grassy hillsides and in openings of brush- woodland of coastal plain and foothills below 1000 m, scattered along the Pacific slope of Mexico from Nayarit to Chiapas, thence weakly e. into s. Veracruz and Belize; to be expected in Guatemala. —Fl. (VI-)VII-I(-IV), probably whenever moisture permits. Map 44.
Distribution:Mexico North America
| Veracruz Mexico North America
| Nayarit Mexico North America
| Chiapas Mexico North America
| Belize Central America
| Guatemala Central America