Pholistoma

{{Short description|Genus of flowering plants}} {{automatic taxobox |image = Pholistoma auritum.jpg |image_caption = ''Pholistoma auritum'' |taxon = Pholistoma |authority = Lilja<ref name=WFO_4000029308/> |subdivision_ranks = Species |subdivision = 3, see text }}

'''''Pholistoma''''' is a small genus of flowering plants in the family Hydrophyllaceae.<ref name=WFO_4000029308>{{Cite WFO |title=''Pholistoma'' Lilja |id=4000029308 |access-date=2025-12-23}}</ref> Species are known generally as '''fiestaflowers'''. There are three species, all native to a section of western North America between Oregon and Baja California. They are fleshy annual herbs producing angled bristly or prickly stems with several brittle branches. The deeply lobed, bristly leaves are borne on winged petioles that clasp the stem at their bases. The plants bear rotate flowers in shades of blue, purple, or white depending on species.

==Species== {{As of|2025|December}}, three species were accepted:<ref name=WFO_4000029308/><ref name = powo>[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30113486-2 ''Pholistoma'' Lilja]. ''Plants of the World Online''. Retrieved 2025-12-23.</ref> *''Pholistoma auritum'' {{small|(Lindl.) Lilja}} - blue fiestaflower *''Pholistoma membranaceum'' {{small|(Benth.) Constance}} - white fiestaflower *''Pholistoma racemosum'' {{small|(Nutt. ex A.Gray) Constance}} - racemose fiestaflower

==References== {{Reflist}}

==External links== *[http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?4518,4710 Jepson Manual Treatment]

Category:Hydrophyllaceae Category:Boraginales genera