Euphorbia capitellata (Head Broomspurge)

Euphorbia capitellata (Head Broomspurge)

Family
EUPHORBIACEAE
Synonyms
CHAMAESYCE PYCNANTHEMA; EUPHORBIA CAPITELLATA; EUPHORBIA PYCNANTHEMA; EUPHORBIA RUSBYI; EUPHORBIA GEMINILOBA
Common Name
Head Broomspurge
Agency Status
USFWS State of NM USFS BLM Navajo Nation State Rank Global Rank R-E-D Code NMRPTC Status Strategy Status
S3? G4?
Distribution
The type is from Arizona/Sonora border at San Bernardo (by Wright). Arizona, western Texas, Chihuahua, Coahuila, Sonora, Sinaloa, Lower California (Wheeler 1941).; Brewster county (Big Bend area), Texas (Correll & Johnston 1979); northwestern Mexico from Coahuila to the Baja California penninsula and Durango, and the southwestern United States from Arizona to Texas (Steinmann & Felger 1997).
Habitat
Hillsides, washes, arid plains (Shreve & Wiggins 1964); Chihuahuan Desert (as E. pycnanthema; Correll & Johnston 1979); Sonoran desert scrub, grassland, thorn scrub, and tropical deciduous forest (Steinmann & Felger 1997).
Important Literature

Correll, D.S. and M.C. Johnston. 1979. Manual of the vascular plants of Texas, second printing. The University of Texas at Dallas, Richardson, TX.

Shreve, F. and I.L. Wiggins. 1964. Vegetation and flora of the Sonoran Desert. Two volumes. Stanford University Press.

Wooton, E.O. and P.S. Standley. 1915. Flora of New Mexico. Contributions from the United States National Herbarium, Smithsonian Institution, Government Printing Office, Washington, D.C.

Steinmann, V.W. and R.S. Felger. 1997. The Euphorbiaceae of Sonora, Mexico. Aliso 16(1):1-71

Wheeler, L.C. 1941. Euphorbia subgenus Chamaesyce in Canada and United States exclusive of southern Florida. Rhodora 43:96-286 plus many plates.

Information Compiled By
David Bleakly 1998

For distribution maps and more information, visit Natural Heritage New Mexico