Gutierrezia Explained

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.^{[1] [2] [3] [4] [5] [6]} Some species have been called greasewood.^[7] 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.^[8]

Species^{[9] [10] [11] [12]}

• Gutierrezia alamanii - Chihuahua
• Gutierrezia argyrocarpa - Hidalgo
• Gutierrezia arizonica – Arizona snakeweed - Arizona, Sonora
• Gutierrezia baccharoides - Chile, Argentina
• Gutierrezia californica – San Joaquin snakeweed - California, Baja California, Arizona (Yavapai Co)
• Gutierrezia conoidea - Chihuahua, Durango, Jalisco, Zacatecas
• Gutierrezia dracunculoides - USA (from Arizona to Nebraska + Tennessee)
• Gutierrezia dunalii - Morelos, México State
• Gutierrezia elegans - Lone Mesa snakeweed
• Gutierrezia espinosae - Chile
• Gutierrezia gayana - Chile
• Gutierrezia gilliesii - Argentina
• Gutierrezia grandis - 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 - Utah
• Gutierrezia pomariensis - Utah
• Gutierrezia pulviniformis - Argentina
• Gutierrezia ramulosa - Baja California
• Gutierrezia repens - Argentina
• Gutierrezia resinosa - Chile
• Gutierrezia sarothrae – broom snakeweed - western Canada, western + central USA, northern Mexico
• Gutierrezia sericocarpa - San Luis Potosí, Durango, Zacatecas, Guanajuato, Querétaro, Nayarit
• Gutierrezia serotina – late snakeweed - 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), Nuevo León
• Gutierrezia wrightii – Wright's snakeweed - USA (Arizona, New Mexico), Chihuahua, Durango, Sonora

External links

• • Jepson Manual Treatment

Notes and References

1. Lagasca y Segura, Mariano. 1816. Genera et species plantarum, quae aut novae sunt aut nondum recte cognoscuntur, Elench. Pl. 30
2. http://www.tropicos.org/Name/40018457 Tropicos, Gutierrezia Lag.
3. Web site: Asteraceae of North America Update, database (version 2010.5.13). Integrated Taxonomic Information System. January 5, 2013.
4. Web site: Gutierrezia Lag. Taxonomic Hierarchy. Integrated Taxonomic Information System. January 5, 2013.
5. Web site: Classification for Kingdom Plantae Down to Genus Gutierrezia Lag.. United States Department of Agriculture Natural Resources Conservation Service. January 5, 2013.
6. Lane, M. A. 1985. Taxonomy of Gutierrezia (Compositae: Astereae) in North America. Systematic Botany 10(1): 7–28
7. The New International Encyclopædia . Greasewood.
8. Book: Everitt . J.H. . Lonard . R.L. . Little . C.R. . Weeds in South Texas and Northern Mexico . Texas Tech University Press . Lubbock . 2007 . 978-0-89672-614-7.
9. http://bonap.net/NAPA/TaxonMaps/Genus/County/Gutierrezia Biota of North America Program 2013 county distribution maps
10. CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F.
11. http://www.theplantlist.org/tpl1.1/search?q=Gutierrezia The Plant List, search for Gutierrezia
12. Web site: Gutierrezia. plantsoftheworldonline.org. Royal Botanical Gardens Kew . 2018-10-18.