{{Short description|Species of flowering plant}} {{Speciesbox |image = Vasey's Rabbitbrush imported from iNaturalist photo 155275462 on 30 August 2024.jpg |image_caption = |status = {{TNCStatus}} |status_system = TNC |status_ref = {{r|NatureServe}} |genus = Chrysothamnus |species = vaseyi |authority = (A.Gray) Greene |synonyms = {{Collapsible list |title=Homotypic synonyms |{{Species list |Aster vaseyi |(A.Gray) Kuntze |Bigelowia vaseyi |A.Gray |Ericameria vaseyi |(A.Gray) L.C.Anderson }}}} {{Collapsible list |title=Heterotypic synonyms |{{Species list |Chrysothamnus bakeri |Greene }}}} |synonyms_ref = {{r|POWO:58182-2}} }}
'''''Chrysothamnus vaseyi''''' is a species of flowering plant in tribe Astereae in the daisy family Asteraceae. It is native to the Southwestern United States. The specific epithet ''vaseyi'' honors the American botanist George Vasey. The species is commonly called '''Vasey's rabbitbrush'''.
==Description== ''Chrysothamnus vaseyi'' is a branching shrub up to 30 cm (12 inches) tall with tan or gray bark, becoming flaky as it gets old. It has many small, yellow flower heads clumped into dense arrays.
==Taxonomy== ''Chrysothamnus vaseyi'' was first described as ''Bigelowia vaseyi'' by the American botanist Asa Gray in 1876.{{r|IPNI:32789-2}} The type specimen was collected by George Vasey at Middle Park in the Rocky Mountains of Colorado in 1868.{{sfnp|Gray|1876|loc=[https://www.biodiversitylibrary.org/page/3119993#page/70/mode/1up p. 58]}} The American botanist Edward Lee Greene placed ''Bigelowia vaseyi'' in genus ''Chrysothamnus'' in 1895.{{r|IPNI:58182-2}} {{As of|2025|1}}, ''Chrysothamnus vaseyi'' {{small|(A.Gray) Greene}} is a widely accepted name.{{r|POWO:58182-2|WFO-0000082485}}
==Distribution and habitat== ''Chrysothamnus vaseyi'' has been found in Utah, Colorado, northern New Mexico, southern Wyoming, northern Arizona (Navajo County) and eastern Nevada (White Pine County).{{r|BONAP}} It grows in open woodlands alongside pine and oak.{{r|FNA:250066354}}
==References== {{Reflist|40em|refs=
<ref name="BONAP">{{BONAP |genus=Chrysothamnus |species=vaseyi |date=2014 |access-date=16 January 2025}}</ref>
<ref name="FNA:250066354">{{eFloras |1 |250066354 |Chrysothamnus vaseyi |volume=20 |last1=Urbatsch |first1=Lowell E. |last2=Roberts |first2=Roland P. |last3=Neubig |first3=Kurt M.}}</ref>
<ref name="IPNI:32789-2">{{IPNI |id=32789-2 |taxon=''Bigelowia vaseyi'' |authority={{small|A.Gray}} |access-date=15 January 2025}}</ref> <ref name="IPNI:58182-2">{{IPNI |id=58182-2 |taxon=''Chrysothamnus vaseyi'' |authority={{small|(A.Gray) Greene}} |access-date=15 January 2025}}</ref>
<ref name="NatureServe">{{Cite NatureServe |date=3 January 2025 |id=2.145620 |title=''Chrysothamnus vaseyi'' |access-date=16 January 2025}}</ref>
<ref name="POWO:58182-2">{{cite POWO |id=58182-2 |title=''Chrysothamnus vaseyi'' {{small|(A.Gray) Greene}} |access-date=15 January 2025}}</ref>
<ref name="WFO-0000082485">{{cite web |title=''Chrysothamnus vaseyi'' {{small|(A.Gray) Greene}} |url=https://wfoplantlist.org/taxon/wfo-0000082485-2024-12 |website=WFO Plant List |access-date=15 January 2025}}</ref>
}}
==Bibliography== * {{cite journal |last1=Gray |first1=Asa |title=Contributions to the botany of North America |journal=Proceedings of the American Academy of Arts and Sciences |date=1876 |volume=12 |pages=51–84 |url=https://www.biodiversitylibrary.org/page/3119993#page/63/mode/1up |access-date=16 January 2025}}
==External links== *[http://www.tropicos.org/ImageFullView.aspx?imageid=4851 photo of herbarium specimen at Missouri Botanical Garden, collected in New Mexico, type specimen of ''Chrysothamnus vaseyi'']
{{Taxonbar|from=Q15595692}}
Category:Astereae Category:Flora of the Northwestern United States Category:Flora of the Southwestern United States Category:Flora of New Mexico Category:Plants described in 1876 Category:Taxa named by Edward Lee Greene Category:Flora without expected TNC conservation status