Monographs Details: Abarema leucophylla var. vaupesensis Barneby & J.W.Grimes
Authors:Rupert C. Barneby
Authority: Barneby, Rupert C. & Grimes, James W. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74: 1-292.
Description:Variety Description - Characters as given in key to varieties. [Key: "Shrubs of treelets 1.5-5 m; peripheral fls with calyx 2-2.6 mm and corolla 3-4 mm; terminal fls with calyx 2-2.5 mm and corolla 3.3-3.5 mm."]

Distribution and Ecology - In open savanna below 300 m, local at the SW edge of the range of var. leucophylla, on the upper ríos Vaupés and Apaporis in SE Com. Vaupés, Colombia. Map 19. — Fl. IX-XI. [Key] "on the upper Río Vaupés and Río Apaporis in SE Com. Vaupés, Colombia...........17b. var. vaupesensis"

Discussion:The early collections of A. leucophylla var. vaupesensis were misidentified as Pithecellobium microcalyx, from which they are clearly different in plane or shallowly convex, not mounded and small-pored leaf-nectaries, and by larger calyces, more coriaceous leaflets, and basally dilated filaments of the capitulum’s terminal flower.
Distribution:Vaupés Colombia South America|