Gutierrezia is a genus of flowering plants in the family Asteraceae, native to western North America and western South America. Plants of this genus are known generally as snakeweeds or matchweeds.Lagasca y Segura, Mariano. 1816. Genera et species plantarum, quae aut novae sunt aut nondum recte cognoscuntur, Elench. Pl. 30Tropicos, Gutierrezia Lag.Lane, M. A. 1985. Taxonomy of Gutierrezia (Compositae: Astereae) in North America. Systematic Botany 10(1): 7–28 Some species have been called greasewood. They are annual or perennial plants or subshrubs with yellow or white flowers.
These plants contain chemical compounds which can be toxic to livestock and some are considered weeds.
SpeciesBiota of North America Program 2013 county distribution mapsCONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F.The Plant List, search for Gutierrezia Gutierrezia alamanii - Mexico (Chihuahua) Gutierrezia argyrocarpa - Mexico (Hidalgo) Gutierrezia arizonica – Arizona snakeweed - USA (Arizona), Mexico (Sonora) Gutierrezia baccharoides - Chile, Argentina Gutierrezia californica – San Joaquin snakeweed - USA (California, and Yavapai Co, Arizona), Mexico (Baja California) Gutierrezia conoidea - Mexico (Chihuahua, Durango, Jalisco, Zacatecas) Gutierrezia dracunculoides - USA (from Arizona to Nebraska and Tennessee) Gutierrezia dunalii - Mexico (Morelos, México State) Gutierrezia elegans - Lone Mesa snakeweed - USA (Colorado) Gutierrezia espinosae - Chile Gutierrezia gayana - Chile Gutierrezia gilliesii - Argentina Gutierrezia grandis - Mexico (Nuevo León, Coahuila) Gutierrezia isernii - Argentina Gutierrezia mandonii - Argentina, Bolivia Gutierrezia microcephala – threadleaf snakeweed - southwestern USA, northern Mexico Gutierrezia neaeana - Chile Gutierrezia paniculata - Chile Gutierrezia petradoria – San Pedro snakeweed - USA (Utah) Gutierrezia pomariensis - USA (Utah) Gutierrezia pulviniformis - Argentina Gutierrezia ramulosa - Mexico (Baja California) Gutierrezia repens - Argentina Gutierrezia resinosa - Chile Gutierrezia sarothrae – broom snakeweed - western Canada, western and central USA, northern Mexico Gutierrezia sericocarpa - Mexico (San Luis Potosí, Durango, Zacatecas, Guanajuato, Querétaro, Nayarit) Gutierrezia serotina – late snakeweed - USA (Arizona) Gutierrezia solbrigii - Argentina Gutierrezia spathulata - Argentina Gutierrezia sphaerocephala – roundleaf snakeweed - USA (Arizona, New Mexico, Texas), northern Mexico Gutierrezia taltalensis - Chile Gutierrezia texana – Texas snakeweed - USA (New Mexico, Texas, Oklahoma, Louisiana, Arkansas), Mexico (Nuevo León) Gutierrezia wrightii – Wright's snakeweed - USA (Arizona, New Mexico), Mexico (Chihuahua, Durango, Sonora)
References
External links
Jepson Manual Treatment