|Ericameria nauseosa in Oregon|
Ericameria nauseosa (formerly Chrysothamnus nauseosus), commonly known as Chamisa, rubber rabbitbrush, and gray rabbitbrush, is a North American shrub in the sunflower family (Aster). It grows in the arid regions of western Canada, western United States (from the western Great Plains to the Pacific) and northern Mexico. 
Rubber rabbitbrush was moved from the genus Chrysothamnus to the genus Ericameria in a 1993 paper.  The findings of a 2003 phylogenetic investigation of Ericameria were consistent with the move of the rubber rabbitbrush from Chrysothamnus to Ericameria.  The second edition of the Jepson plant manual  and the USDA Germplasm Resources Information Network  have adopted the name Ericameria nauseosa.
It blooms from August to October.  It produces pungent-smelling, golden-yellow flowers. Flower heads are made up of 5 small, yellow, tubular disk flowers, and occur in umbrella-shaped terminal clusters.  
Leaves, depending on the subspecies, are long and narrow to spatula-shaped. Both the flexible (rubbery) stems and the leaves are greenish-gray with a soft felt-like covering. 
- Ericameria nauseosa subsp. consimilis (Greene) G.L.Nesom & G.I.Baird (green form)
- Ericameria nauseosa var. arenaria (L.C.Anderson) G.L.Nesom & G.I.Baird – sandstone in Arizona, New Mexico, Utah
- Ericameria nauseosa var. arta (A.Nelson) G.L.Nesom & G.I.Baird – Idaho, Oregon
- Ericameria nauseosa var. ceruminosa (Durand & Hilg.) G.L.Nesom & G.I.Baird – gravelly arroyos in Mohave Desert of California
- Ericameria nauseosa var. juncea (Greene) G.L.Nesom & G.I.Baird – Utah
- Ericameria nauseosa var. leiosperma (A.Gray) G.L.Nesom & G.I.Baird – sandy + rocky sites in Arizona, California, Colorado, Nevada, Utah
- Ericameria nauseosa var. mohavensis (Greene) G.L.Nesom & G.I.Baird – scrublands in California, Nevada
- Ericameria nauseosa var. nitida (L.C.Anderson) G.L.Nesom & G.I.Baird – dry streambeds in Arizona, New Mexico, Utah
- Ericameria nauseosa var. turbinata (M.E.Jones) G.L.Nesom & G.I.Baird – sand dunes in Arizona, Nevada, Utah
- Ericameria nauseosa subsp. nauseosa (gray form)
- Ericameria nauseosa var. ammophila L.C.Anderson – Colorado 
- Ericameria nauseosa var. bernardina (H.M.Hall) G.L.Nesom & G.I.Baird – open pine forests in California; Baja California
- Ericameria nauseosa var. bigelovii (A.Gray) G.L.Nesom & G.I.Baird – dry slopes in Arizona, Colorado, New Mexico, Utah
- Ericameria nauseosa var. graveolens (Nutt.) Reveal & Schuyler – plains in Sask.; Arizona, Colorado, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, Dakotas, Oklahoma, Texas, Utah, Wyoming
- Ericameria nauseosa var. hololeuca (A.Gray) G.L.Nesom & G.I.Baird – slopes in Arizona, California, Idaho, Nevada, New Mexico, Oregon, Utah
- Ericameria nauseosa var. iridis (L.C.Anderson) G.L.Nesom & G.I.Baird – steep, barren slopes in Sevier County in Utah
- Ericameria nauseosa var. latisquamea (A.Gray) G.L.Nesom & G.I.Baird - dry streambeds in Arizona, New Mexico; Baja California, Sonora
- Ericameria nauseosa var. nana (Cronquist) G.L.Nesom & G.I.Baird – ridges and cliffs in Idaho, Oregon, Washington
- Ericameria nauseosa var. nauseosa – plains + hills in Alberta, Saskatchewan; Colorado, Idaho, Montana, Nebraska, Dakotas., Wyoming
- Ericameria nauseosa var. oreophila (A.Nelson) G.L.Nesom & G.I.Baird – Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Wyoming, Baja California
- Ericameria nauseosa var. psilocarpa (S.F.Blake) G.L.Nesom & G.I.Baird – sagebrush scrub in eastern Utah
- Ericameria nauseosa var. salicifolia (Rydb.) G.L.Nesom & G.I.Baird – brushlands in Utah
- Ericameria nauseosa var. speciosa (Nutt.) G.L.Nesom & G.I.Baird – brush + open woodlands in Alberta, British Columbia, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming
- Ericameria nauseosa var. texensis (L.C.Anderson) G.L.Nesom & G.I.Baird – Guadalupe Mountains in Texas + New Mexico
- Ericameria nauseosa var. washoensis (L.C.Anderson) G.L.Nesom & G.I.Baird – open rocky sites in grasslands of northeastern California and northwestern Nevada
Rabbitbrush, Ericameria nauseosa, has gained popularity as an ornamental xeriscaping shrub in areas where water conservation is important. It thrives in a wide range of coarse, alkaline soils that are common to desert environments. Pruning the shrub back to several inches in early spring, before new growth begins, may help improve the shrub's ornamental value. 
Along with associated species, like big sage and western wheat grass, rubber rabbitbrush is a significant source of food for browsing wildlife (including game animals and rabbits)  on winter ranges.  Dense stands of this species often grow on poorly managed rangelands, in disturbed areas along roadways and on abandoned agricultural property. 
Rubber rabbitbrush was considered as a source of rubber as early as 1904.  Several studies have been conducted on the possible use of rubber rabbitbrush as a source of rubber including ones during World Wars I and II, and 1987.  Currently the University of Nevada is conducting research on possible of uses of rubber rabbitbrush for biomaterial and bioenergy uses.  One possible commercial use of rubber rabbitbrush would be as a source for hypoallergenic rubber for use in products designed for people with latex allergies. 
Specimens growing in Bayo Canyon, near Los Alamos, New Mexico, exhibit a concentration of radioactive strontium-90 300,000 times higher than a normal plant. Their roots reach into a closed nuclear waste treatment area, mistaking strontium for calcium due to its similar chemical properties. The radioactive shrubs are "indistinguishable from other shrubs without a Geiger counter." 
Rabbitbrush native to the area near the post office in Crestone, Colorado
- The Plant List, Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird
- Biota of North America Program 2014 county distribution map
- Completion of Ericameria (Asteraceae: Astereae): diminution of Chrysothamnus 1993 Phytologia 75: 74–93, G. L. Nesom, G.I. Baird.
- Molecular phylogeny of Ericameria (Asteraceae, Astereae) based on nuclear ribosomal 3' ETS and ITS sequence data TAXON 52 · May 2003: 209–228, Roland P. Roberts, Lowell E. Urbatsch
- "The Jepson Manual: Vascular Plants of California (2nd Edition), Ericameria nauseosa". University of California, Berkeley. 2010-10-21.[ permanent dead link]
- "Ericameria nauseosa". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 21 December 2017.
- Mojave Desert Wildflowers, Pam MacKay, 2nd Ed. p 198
- Flora of North America, Rabbitbrush, Ericameria nauseosa (Pallas ex Pursh) G. L. Nesom & G. I. Baird
- WildflowerSearch.com: Ericameria nauseosa.
- Malaby, Sarah. "Rubber Rabbitbrush (Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird)". US Forest Service. Archived from the original on 2011-10-20. Retrieved 2010-10-22.
- Tropicos, Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & G.I. Baird
- Anderson, Loran Crittendon 2006. Sida 22(2): 868–872 diagnosis in Latin, description and commentary in English, color photo on page 869
- Wendy Mee et al. Waterwise, Native Plants for Intermountain Landscapes. Utah State University Press, 2003 Archived 2007-09-06 at the Wayback Machine.
- Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p. 442. ISBN 0-394-73127-1.
- Utah State University Extension Archived 2009-05-08 at the Wayback Machine.
- Stevenson, Matilda Coxe 1915 Ethnobotany of the Zuni Indians. SI-BAE Annual Report #30, p.80
- Stevenson p.81
- Hall, Harvey (2010-11-06). A rubber plant survey of western North America, Volume 7, page 186. University of California.
- Resin and Rubber Content in Chrysothmnus 1987 Dale Hegerhorst, Darrell W. Weber E. Durant McArthur The Southwestern Naturalist 32(4):475–482
- "Rabbit Brush: A New High Value Rubber Crop for Nevada". United States Department of Agriculture. 2010-11-06.
- "Nevada Dividends Impact Report Rabbit Brush Potential for Domestic Rubber Production". University of Nevada, Reno. 2010-11-06.
- Masco, Joseph. The Nuclear Borderlands: The Manhattan Project in Post-Cold War New Mexico. Princeton University Press, 2006.
|Wikimedia Commons has media related to Ericameria nauseosa.|
- United States Department of Agribulture Profile: Ericameria nauseosa
- Jepson Manual – Ericameria nauseosa
- Ericameria nauseosa Calflora Photo Gallery, University of California
- Ericameria nauseosa Oregon Flora Image Project
- Data related to Ericameria nauseosa at Wikispecies