{{Short description|Genus of flowering plants}} {{Speciesbox |image = |status = G2 |status_system = TNC |status_ref = |display_parents = 4 |genus = Carlquistia |parent_authority = B.G.Baldw. |species = muirii |authority = (A.Gray) B.G.Baldw. |synonyms_ref = <ref>[http://www.theplantlist.org/tpl1.1/record/gcc-145034 The Plant List, ''Carlquistia muirii'' (A.Gray) B.G.Baldwin ]</ref> |synonyms = *''Raillardella muirii'' <small>A.Gray</small> *''Raillardiopsis muirii'' <small>(A.Gray) Rydb.</small> }}
'''''Carlquistia''''' is a rare North American genus of flowering plants in the family Asteraceae containing the single species '''''Carlquistia muirii'''''. Formerly named ''Raillardiopsis muirii'', the plant was reexamined in the 1990s and moved to a new genus of its own, separate from similar and closely related genera, such as ''Madia''.<ref name=fna>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=316916 Flora of North America: ''Carlquistia'']</ref> Common names for the species include '''Muir's tarplant''',<ref name=jeps>[http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=77556 ''Carlquistia muirii''.] The Jepson eFlora 2013</ref> '''Muir's raillardiopsis''',<ref>[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=780237 ''Carlquistia muirii''] Integrated Taxonomic Information System (ITIS)</ref> and '''Muir's raillardella'''.<ref>[http://ecos.fws.gov/speciesProfile/profile/speciesProfile.action?spcode=Q1KT Muir's raillardella (''Carlquistia muirii'').] US Fish & Wildlife Service Species Profile.</ref>
This plant is related to the silversword alliance of Hawaiian plants.<ref name=fna/><ref>[http://www.botany.hawaii.edu/FACULTY/CARR/carlquistia.htm ''Carlquistia'' and the Silversword Alliance] {{webarchive |url=https://web.archive.org/web/20100602011005/http://www.botany.hawaii.edu/FACULTY/CARR/carlquistia.htm |date=June 2, 2010 }}</ref>
The genus was named for the American botanist Sherwin Carlquist (1930–2021).<ref name=fna/> The specific epithet ''"muirii"'' honors Scottish-American naturalist, John Muir (1838–1914).<ref>[https://www.biodiversitylibrary.org/page/21280106#page/646/mode/1up Gray, Asa. 1876. Geological Survey of California, Botany 1: 618]</ref>
==Description== ''Carlquistia muirii'' is a rhizomatous perennial herb forming clumps or mats of stems with hairy green pointed leaves up to about 4 centimeters long. Leaves are arranged oppositely on the lower stem, and alternately higher up. The inflorescence is usually made up of a solitary glandular flower head on an erect stalk. The head contains many yellow disc florets but no ray florets. The fruit is a very narrow achene which may exceed one centimeter in length including its pappus of plumelike bristles.<ref name=fna/>
==Distribution== ''Carlquistia muirii'' is endemic to California. It has a discontinuous distribution, occurring in the southern Sierra Nevada (Fresno, Tulare, and Kern Counties) and on the other western side of the San Joaquin Valley around the Ventana Double Cone in the Santa Lucia Mountains of Monterey County.<ref name=fna/><ref>[http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Carlquistia+muirii Calflora taxon report, University of California, ''Carlquistia muirii'' (Gray) B.G. Baldwin Muir's tarplant ]</ref>
==References== {{Reflist}}
==External links== *[https://plants.usda.gov/java/profile?symbol=CAMU27 ''Carlquistia muirii''.] United States Department of Agriculture plants profile *[http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Carlquistia+muirii ''Carlquistia muirii''.] CalPhotos photo gallery, University of California.
{{Taxonbar|from2=Q5042867|from1=Q15986349|from3=Q38714685}}
Category:Monotypic Asteraceae genera Category:Endemic flora of California Category:Flora of the Sierra Nevada (United States) Category:Madieae