Calyptridium umbellatum
{{Short description|Plant species in the springbeauty family}}
{{Speciesbox
| name = Mount Hood pussypaws
| image = Cistanthe umbellata 22872.JPG
| status = {{TNCStatus}}
| status_system = TNC
| status_ref = {{Cite NatureServe |date=28 February 2025 |id=2.132917 |title=Cistanthe umbellata |access-date=22 March 2025}}
| genus = Calyptridium
| species = umbellatum
| synonyms_ref = {{cite POWO |id=43482-2 |title=Calyptridium umbellatum (Torr.) Greene |access-date=22 March 2025}}
| synonyms = {{Collapsible list | {{Species list
| Calyptridium nudum |
| Calyptridium paniculatum |
| Calyptridium umbellatum var. caudiciferum |
| Cistanthe umbellata |
| Cistanthe umbellata var. caudicifera |
| Spraguea candicifera |
| Spraguea montana |
| Spraguea multiceps |
| Spraguea nuda |
| Spraguea paniculata |
| Spraguea umbellata |
| Spraguea umbellata var. caudicifera |
| Spraguea umbellata var. montana |
}}
}}
}}
Calyptridium umbellatum, synonym Cistanthe umbellata, is a species of flowering plant in the montia family known by the common name Mount Hood pussypaws or — especially outside the Pacific Northwest — simply pussy-paws.{{cite web |title=Calyptridium umbellatum |url=https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=1344 |publisher=CalFlora |accessdate=16 January 2020}}
Range
Calyptridium umbellatum is native to western North America from British Columbia to California to Colorado, where it grows in a number of habitat types, including areas inhospitable to many other plant types, such as those with alpine climates.
A small subgroup of C. umbellatum are located in the Zayante Sandhills, a biological island in the Santa Cruz Mountains.{{cite web |title=The Rare Santa Cruz Sandhills and the People who Love Them |url=https://baynature.org/article/the-rare-santa-cruz-sandhills-and-the-people-who-love-them/ |website=Bay Nature Magazine |accessdate=16 January 2020 |date=13 April 2012}} These individuals reside on a singular hill in the entirety of the sandhills, and their frail petals and loose seeds allow for easy wind dispersal.
Habit
It is a perennial herb forming generally two or more basal rosettes of thick, spoon-shaped leaves each a few centimeters long. The inflorescence arises from the rosette, a dense, spherical umbel of rounded sepals and four small petals.
C. umbellatum usually has only one inflorescence per basal rosette; the related C. monospermum generally has more than one.{{cite web |title=Key to Calyptridium |url=http://ucjeps.berkeley.edu/eflora/eflora_keys.php?key=68199 |publisher=Jepson Herbarium |accessdate=16 January 2020}}
References
{{Reflist}}
External links
{{Commons}}
- [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?6318,6324,6335 Jepson Manual Treatment]
- [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Cistanthe+umbellata Photo gallery]
{{Taxonbar|from=Q2974357}}
Category:Plants described in 1853
Category:Flora of Western Canada
Category:Flora of British Columbia
Category:Flora of Washington (state)
Category:Flora without expected TNC conservation status
{{Caryophyllales-stub}}