Pithecellobium pallens (Benth.) Standl.
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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 - Armed shrub or small tree, 1-6 m, puberulent except for leaflets. Leafstalk gland on petiole, rachis glands present or absent; pinnae 3-5(-6) pairs; leaflets 9-15 pairs, elliptic-oblong, 4-7 mm long, 1.5-2.5 mm wide, moderately nerved. Spines slender, straight, 1-15 mm, black. Flowers in yellowish-white heads, 1.5-2.3 cm diam, fasciculate-racemose or panicled at branch tips, infrequently solitary. Legume oblong, flat, straight, 5-10 cm long, ca 1 cm wide, dehiscent; valves thick-membranous, olive-drab to black.
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Discussion
Havardia pallens (Benth.) Britt. & RoseCN 2n = 26 (Turner & Fearing, 1960a).
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Distribution
S Texas. Mexico. Lower Rio Grande plains, mesquite-brushland, sandy to clay soils; slightly in cultivation. April-Aug. (Sept.). Mexico.
United States of America North America| Mexico North America|