Mimosa strigillosa Torr. & A.Gray
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Authority
Isley, Duane. 1973. Leguminosae of the United States: I. Subfamily. Mimosoideae. Mem. New York Bot. Gard. 25 (1): 1-152.
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Family
Mimosaceae
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Scientific Name
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Description
Species Description - Decumbent, pubescent, often mat-forming and stoloniferous, diminutive to robust, perennial herb with ascending peduncles. Stem pubescence strigose, of bulbous-based hairs .5-2 mm. Petioles to 1 dm, subequal to rachis; pinnae 4-5(-6) pairs; leaflets crowded, 6-15 pairs, asymmetric-oblong, 3-4 mm, with evident venation, glabrate to ciliate. Stipules evident, deltoid, striate-nerved. Flowers in strongly peduncled (4-10 cm), usually exserted, pinkish or lavender (fading white), globose to short-cylindric heads to 2.5 cm long and 2 cm wide. Calyx ca .5 mm, scarcely lobed; corolla 2-2.5 mm. Legume oblong, to 2.5 cm long and 10-12 mm broad; valves subcoriaceous, setulose, weakly segmented into ca 3 joints at maturity.
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Discussion
Apparently the western phase of this species in the United States is disjunct from the eastern segment, but I discern no significant exomorphic difference between the two.
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Distribution
Bicentric in U.S.: (1) Peninsular Florida n to se Georgia; (2) s and e Texas to s Arkansas and e Mississippi. Open woodlands, creek bottoms, disturbed areas, occasionally semiweedy, moist or dry, clay to sandy soils, widely distributed and locally frequent. April-Aug. (Nov.). American tropics.