CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record calyptridium_arizonicum - Sat, Dec. 4, 2021, 06:28 ET b
Calyptridium arizonicum
common nameArizona pussypaws
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life formannual herb
CA Rare Plant Rank
List 2B.1
LIST 2B: Rare, threatened, or endangered in California, but more common elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G3?      ranking system key
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (1):
Earthquake Valley (032C) 3311614
quad data info

Counties, states, regions:
San Diego (SDG), Baja California (BA), Sonora - Mexico (SO)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Sonoran desert scrub (SDScr)/Metamorphic, washes
blooming period Mar-Apr  
elevation range610 - 790 meters
Discovered in CA in 2004; known in CA from fewer than 5 occurrences in the vicinity of the North Pinyon Mtns. in Anza-Borrego Desert SP. Threatened by vehicles. Potentially threatened by foot traffic and recreational activities. Not in The Jepson Manual (1993). See C. parryi var. arizonicum in TJM 2. See Leaflets of Western Botany 4(8):214-216 (1945) for original description, and Madroņo 57(3):145-160 (2010) for taxonomic treatment.
full nameCalyptridium arizonicum (J.T.Howell) M.G.Simpson, M.Silveira, & Guilliams
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDPOR09051
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Sat, Dec. 4, 2021 from

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