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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Astereae
Subtribus: Solidagininae
Genus: Chrysothamnus
Species: C. depressus – C. eremobius – C. greenei – C. humilis – C. molestus – C. stylosus – C. vaseyi – C. viscidiflorus
Source(s) of checklist:

Hassler, M. 2018. Chrysothamnus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2018 Mar. 19. Reference page.

Name

Chrysothamnus Nutt., 1840

Type species: Chrysothamnus pumilus Nutt. CT proposed by Reveal & Anderson, Taxon 44: 443-444 (1995) and acepted by the Spermatophyta Committee, Taxon 47: 444 (1998) and the General Committee, Taxon 48: 375 (1999)

References

Nuttall, T. 1840. Descriptions of new species and genera of plants in the natural order of the Compositae, collected in a tour across the continent to the Pacific, a residence in Oregon, and a visit to the Sandwich Islands and upper California, during the years 1834 and 1835. Transactions of the American Philosophical Society, held at Philadelphia, for promoting useful knowledge, n.s.[new series][ser. 2], 7: 283–453. BHL Reference page.

Links

Hassler, M. 2018. Chrysothamnus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2018 Mar. 19. Reference page.
International Plant Names Index. 2018. Chrysothamnus. Published online. Accessed: Mar. 19 2018.
The Plant List 2013. Chrysothamnus in The Plant List Version 1.1. Published online. Accessed: 2018 Mar. 19.
Tropicos.org 2018. Chrysothamnus. Missouri Botanical Garden. Published online. Accessed: 19 Mar. 2018.
USDA, ARS, Germplasm Resources Information Network. Chrysothamnus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Rabbitbrush

Chrysothamnus, known as rabbitbrush, rabbitbush, and chamisa, are a genus of shrubs in the sunflower family.[2][3][4] The native distribution is in the arid western United States, Canada, and northern Mexico. It is known for its bright white or yellow flowers in late summer.[1]

Chrysothamnus may grow up to a 120 cm (47 in) tall shrub or subshrub, usually with woody stem bases.[1] The leaves are alternate, sessile or with short petioles, with entire edges. The flowerheads are singular or in clusters. Each composite flower often has five to 6 (though sometimes upwards of 40) yellow disc florets and no ray florets.[1]

Chrysothamnus species are used as food plants by the larvae of some Lepidoptera species including Coleophora linosyridella, Coleophora viscidiflorella (which have both been recorded on C. viscidiflorus) and Schinia walsinghami.

Species[5][6]

Chrysothamnus depressus – dwarf rabbitbrush, longflower rabbitbrush – California Nevada Arizona Utah Colorado New Mexico
Chrysothamnus eremobius – pintwater rabbitbrush, remote rabbitbrush – Nevada
Chrysothamnus greenei – Greene's rabbitbrush – California Nevada Arizona Utah Colorado New Mexico Wyoming
Chrysothamnus humilis – Truckee rabbitbrush – California Nevada Oregon Washington Idaho
Chrysothamnus molestus – Arizona rabbitbrush – Arizona
Chrysothamnus scopulorum – Arizona Utah
Chrysothamnus stylosus – Arizona Utah
Chrysothamnus vaseyi – Vasey's rabbitbrush – Arizona Utah New Mexico Colorado Wyoming
Chrysothamnus viscidiflorus – yellow rabbitbrush – British Columbia Washington Oregon California Arizona Nevada Idaho Montana Wyoming Utah Colorado New Mexico South Dakota Nebraska

References

Flora of North America, Rabbitbrush, Chrysothamnus Nuttall, Transactions of the American Philosophical Society, new series 7: 323. 1840.
Nuttall, Thomas. 1840. Transactions of the American Philosophical Society, new series 7: 323–324. in English
Tropicos, Chrysothamnus Nutt.
USDA Plants Profile for Chrysothamnus (rabbitbrush)
Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-14 at archive.today
Biota of North America Program 2013 county distribution maps

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