Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Grindelia arizonica Gray var. neomexicana (Wooton & Standley) Nesom
(New Mexico Gumweed)


Family: Asteraceae

Status: Endemic

Synonyms:
Donia squarrosa Wooton & Standley
Grindelia scabra Greene Var. neomexicana (Wooton & Standley) Steyermark

Grindelia arizonica var. neomexicana is an erect herb with yellow disc and usually also ray flowers. After anthesis, the disc is covered with a gummy or resiny white substance. The phyllaries are reflexed. Grindelia arizonica var. neomexicana is found from lower to middle elevations in the Gila.
Please click on an image for a larger file.



Grindelia arizonica var. neomexicana, photo Russ Kleinman, Rte. 180 south of Tyrone, June 20, 2007



Grindelia arizonica var. neomexicana, detail of inflorescence, photo Russ Kleinman, Rte. 180 south of Tyrone, June 20, 2007



Grindelia arizonica var. neomexicana, lacking rays, photo Russ Kleinman, McKinney Road, Tyrone, Oct. 3, 2007



Grindelia arizonica var. neomexicana, detail of inflorescence being pollinated, photo Russ Kleinman, Pinos Altos Range, Signal Peak turnoff, July 2, 2007



Grindelia arizonica var. neomexicana, closeup of inflorescence after anthesis, photo Russ Kleinman, Pinos Altos Range, Sheep Corral, July 12, 2009


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