{{Short description|Genus of flowering plants}} {{Automatic taxobox |image = Holocarpha macradenia.jpg |image_caption = ''Holocarpha macradenia'' |display_parents = 3 |taxon = Holocarpha |authority = Greene 1897 }}
'''''Holocarpha''''' is a small genus of flowering plants in the family Asteraceae. The genus contains four species of tarweeds, which are all endemic to California.<ref name="tammy">[http://www.calflora.org/cgi-bin/specieslist.cgi?where-genus=Holocarpha Calflora taxon report, University of California, genus ''Holocarpha'']</ref>
==Description== ''Holocarpha'' are glandular, aromatic annual herbs bearing yellow flowers.<ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=115607 Flora of North America, ''Holocarpha'' Greene, 1897. ]</ref>
;Species<ref>[http://www.theplantlist.org/tpl1.1/search?q=Holocarpha The Plant List search for ''Holocarpha'']</ref><ref name=tammy/> *''Holocarpha heermannii'' - Heermann's tarweed *''Holocarpha macradenia'' - Santa Cruz tarweed *''Holocarpha obconica'' - San Joaquin tarweed *''Holocarpha virgata'' - yellowflower tarweed
==Other "tarweeds"== Plants with the same common name, but in a different genus include: * Santa Susana tarweed - ''Deinandra minthornii'' - (''Asteraceae, endemic state-listed rare species in Simi Hills and nearby ranges'') <ref>{{cite web |url=http://www.calflora.net/bloomingplants/santasusanatarplant.html |title=Santa Susana tarplant |website=www.calflora.net |access-date=2010-08-30}}</ref>
==References== {{Reflist}}
==External links== *[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,1403 Jepson Manual Treatment: ''Holocarpha''] *[https://plants.usda.gov/java/profile?symbol=HOLOC United States Department of Agriculture Plants Profile: ''Holocarpha''] {{-}}
{{Taxonbar|from=Q3283931}}
Category:Asteraceae genera Category:Endemic flora of California Category:Madieae Category:Flora without expected TNC conservation status
{{Madieae-stub}}