Grindelia arizonica

Grindelia arizonica, Arizona gumweed,[2] is a North American species of flowering plants in the daisy family. It is native to the southwestern United States and northern Mexico, in the States of Coahuila, Chihuahua, Arizona, New Mexico, Utah, Texas, and Colorado.[3][4]

Grindelia arizonica
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Grindelia
Species:
G. arizonica
Binomial name
Grindelia arizonica
A.Gray 1882
Synonyms[1]
  • Grindelia laciniata Rydb.
  • Grindelia neomexicana Wooton & Standl.

Grindelia arizonica grows in prairies and thickets, and along streambanks. It is an perennial herb up to 70 cm (28 in) tall. The plant usually produces numerous flower heads in open, branching arrays. Each head has 8-26 ray flowers, although some individuals have no rays. In the center of the head, there are a large number of tiny disc flowers.[5]

References
  1. The Plant List, Grindelia arizonicaA.Gray
  2. "Grindelia arizonica". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 18 July 2015.
  3. Biota of North America Program 2014 county distribution map
  4. Nesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae). Phytologia 68(4): 303–332 distribution map on page 308
  5. Flora of North America, Grindelia arizonica A. Gray, 1881.


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