Monographs Details: Mimosa foliolosa subsp. pachycarpa var. gravida
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.
Family:Mimosaceae
Description:Variety Description - Shrubs 12-20 dm, with eventually defoliate trunks, the young stems and lf-stks viscid-villosulous and pilose with ascending yellowish setae ±1-3 mm, minute villi, and gland-tipped setulae variable in density, the lustrous lfts either glabrous on both faces or puberulent dorsally; leaf-formula xii-xxiii(-xxviii)/23-44, the lf-stks of longer lvs 6-15.5 cm, the rachis of longer pinnae (2.5-)3-5 cm, the longer lfts 3.7-5.5 x 0.8-1.3 mm; capitula without filaments 11-12 mm diam.; corolla 4-5 mm; pods 55-85 x 13-15 mm, the replum (3.5-)4-6 mm wide, produced into a cusp 4-10 mm, the valves viscid-villosulous and scabrous with scattered, mostly comma-shaped, forwardly subappressed setulae to 0.6-1 mm.

Distribution and Ecology - On sandy or stony flats and hillsides in cerrado or margin of cerradão, 450-700 m, local on the upper rios Araguaia and das Mortes between 15°30' and 16°30'S in s.-e. Mato Grosso and s.- w. Goiás (Sa. do Caiapó).—Fl. V-YI; fr. VI onward, long persistent on defoliate stems. — Calumbí. Map 32.

Discussion:

The var. gravida is notable for its massive pod with exceptionally wide replum and valves about 0.5-0.8 mm thick, of which all but 0.1 mm consists of livid exocarp. In foliage it closely resembles distantly allopatric var. pachycarpa, which has pods less than half as long and in addition smaller capitula and individual flowers. From var. multipinna, not far distant on Sa. Dourada, it differs in substantially fewer pinnae.

Distribution:Brazil South America| Goiás Brazil South America| Mato Grosso Brazil South America|