What is "gutierrezia"

Gutierrezia is a genus of flowering plants in the sunflower family, native to western North America and western South America. Plants of this genus are known generally as snakeweeds or matchweeds. 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.

1. Gutierrezia alamanii - Chihuahua
2. Gutierrezia argyrocarpa - Hidalgo
3. Gutierrezia arizonica – Arizona snakeweed - Arizona, Sonora
4. Gutierrezia baccharoides - Chile, Argentina
5. Gutierrezia californica – San Joaquin snakeweed - California, Baja California, Arizona ( Yavapai Co)
6. Gutierrezia conoidea - Chihuahua, Durango, Jalisco, Zacatecas
7. Gutierrezia dracunculoides - USA (from Arizona to Nebraska + Tennessee)
8. Gutierrezia dunalii - Morelos, México State
9. Gutierrezia espinosae - Chile
10. Gutierrezia gayana - Chile
11. Gutierrezia gilliesii - Argentina
12. Gutierrezia grandis - Nuevo León, Coahuila
13. Gutierrezia isernii - Argentina
14. Gutierrezia mandonii - Argentina, Bolivia
15. Gutierrezia microcephala – threadleaf snakeweed - southwestern USA, northern Mexico
16. Gutierrezia neaeana - Chile
17. Gutierrezia paniculata - Chile
18. Gutierrezia petradoria – San Pedro snakeweed - Utah
19. Gutierrezia pomariensis - Utah
20. Gutierrezia pulviniformis - Argentina
21. Gutierrezia ramulosa - Baja California
22. Gutierrezia repens - Argentina
23. Gutierrezia resinosa - Chile
24. Gutierrezia sarothrae – broom snakeweed - western Canada, western + central USA, northern Mexico
25. Gutierrezia sericocarpa - San Luis Potosí, Durango, Zacatecas, Guanajuato, Querétaro, Nayarit
26. Gutierrezia serotina – late snakeweed - Arizona
27. Gutierrezia solbrigii - Argentina
28. Gutierrezia spathulata - Argentina
29. Gutierrezia sphaerocephala – roundleaf snakeweed - USA ( Arizona, New Mexico, Texas), northern Mexico
30. Gutierrezia taltalensis - Chile
31. Gutierrezia texana – Texas snakeweed - USA ( New Mexico, Texas Oklahoma Louisiana Arkansas), Nuevo León
32. Gutierrezia wrightii – Wright's snakeweed - USA ( Arizona, New Mexico), Chihuahua, Durango, Sonora