Monographs Details: Calliandra humilis var. gentryana Barneby
Authors:Rupert C. Barneby
Authority: Barneby, Rupert C. 1998. Silk tree, guanacaste, monkey's earring: A generic system for the synandrous Mimosaceae of the Americas. Part III. Calliandra. Mem. New York Bot. Gard. 74: 1-223.
Description:Variety Description - Resembling multifoliolate forms of var. humilis in everything but yet higher lf-formula of vii-x/27-31; larger lfts 3-4.5 x 0.7-1.3 mm.

Distribution and Ecology - Open places in pine-oak forest, ±1800-2100 m, and descending along río Mayo to the lowlands; local on the w. slope of Sa. Madre Occidental within lat. 26°-28°N in s.-e. Sonora, adj. Chihuahua, and n.-e. Sinaloa, Mexico. — Map 9. — Fl. VIII-X.

Distribution:Sonora Mexico North America| Chihuahua Mexico North America| Sinaloa Mexico North America|