# Holocarpha

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> Source: https://en.wikipedia.org/wiki/Holocarpha
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{{Short description|Genus of flowering plants}}
{{Automatic taxobox
|image = Holocarpha macradenia.jpg
|image_caption = ''[Holocarpha macradenia](/source/Holocarpha_macradenia)''
|display_parents = 3
|taxon = Holocarpha
|authority = [Greene](/source/Edward_Lee_Greene) 1897
}}

'''''Holocarpha''''' is a small genus of flowering plants in the family [Asteraceae](/source/Asteraceae). The genus contains four species of [tarweed](/source/Madieae)s, which are all [endemic](/source/Endemism) to [California](/source/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](/source/Holocarpha_heermannii)'' - Heermann's tarweed
*''[Holocarpha macradenia](/source/Holocarpha_macradenia)'' - Santa Cruz tarweed
*''[Holocarpha obconica](/source/Holocarpha_obconica)'' - San Joaquin tarweed
*''[Holocarpha virgata](/source/Holocarpha_virgata)'' - yellowflower tarweed

==Other "tarweeds"==
Plants with the same common name, but in a different genus include:
* Santa Susana tarweed - ''[Deinandra](/source/Deinandra) minthornii'' - (''Asteraceae, endemic state-listed rare species in [Simi Hills](/source/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}}

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Adapted from the Wikipedia article [Holocarpha](https://en.wikipedia.org/wiki/Holocarpha) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Holocarpha?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.