Vascular Plants of the Gila Wilderness

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

Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird
(Rubber Rabbitbrush)


Family: Asteraceae

Status: Native

Synonyms:
Chrysothamnus nauseosus (Pallas ex Pursh) Britton

Ericameria nauseosa is a shrub that is widespread at lower elevations in the Gila National Forest. It is much branched from the base. The whitish younger branches are tomentose and flexuous and have linear leaves that are either dark gray or green depending on variety. The discoid flowers (just a few per flowerhead) are yellow and appear in late summer. The pappus (reduced calyx) is made up of capillary bristles.
Please click on an image for a larger file.



Ericameria nauseosa, photo Russ Kleinman, Burro Mtns., Rte. 90 near Mill Cyn. Rd., July 17, 2007



Ericameria nauseosa, closeup, photo Russ Kleinman, Burro Mtns., Deadman Cyn., Oct. 6, 2008



Ericameria nauseosa, achenes in receptable, photo Russ Kleinman, Burro Mtns., Newby Road, Nov. 7, 2008



Ericameria nauseosa, intact flowerhead in series showing floret dissection, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret in series showing floret dissection, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, distal end of single floret prior to dissection (anther tips show), photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret with half of pappus removed to expose corolla better, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret with corolla removed exposing distinct filaments and connate anthers opening inward, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret with corolla removed exposing distinct filaments and connate anthers opening inward, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret with corolla removed and one anther pulled away exposing anthers opening inward and pollen shed to the inside of the anther collar, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, single floret with corolla removed and one anther pulled away exposing anthers opening inward and pollen shed to the inside of the anther collar, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022



Ericameria nauseosa, floret dissection explanatory summary slide, photo Russ Kleinman & Karen Blisard, Silver City, 32nd St. Bypass, October 29, 2022


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