CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record pholisma_sonorae - Thu, Dec. 2, 2021, 11:44 ET b
Pholisma sonorae
common namesand food
CalPhotos image
more photos
Donald Myrick © 1999 California Academy of Sciences  Follow image link for photo data.
life formperennial herb parasitic
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (16):
Hedges (013A) 3211487, Clyde (013B) 3211488, Cactus (013C) 3211478, Ogilby (013D) 3211477, Glamis (014A) 3211581, Glamis NW (014B) 3211582, Glamis SE (014D) 3211571, Holtville NE (015A) 3211583, Holtville West (015C) 3211574, Holtville East (015D) 3211573, Gables Wash (026C) 3311418, Acolita (027C) 3311512, East Of Acolita (027D) 3311511, Tortuga (028A) 3311523, Amos (028D) 3311513, Kane Spring (030D) 3311517
quad data info

Counties, states, regions:
Imperial (IMP), Arizona (AZ), 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•Desert dunes (DeDns)
•Sonoran desert scrub (SDScr)(sandy)
blooming period (Mar),Apr-Jun   Months in parentheses are uncommon.
elevation range0 - 200 meters
Threatened by vehicles, military activities, agriculture, habitat loss, and non-native plants. Parasitic on Eriogonum, Tiquilia, Ambrosia, and Pluchea spp. See Memoirs of the American Academy of Arts and Sciences 5:327 (1854), Desert Plants 2(3):188-196 (1980) for species account, Systematic Botany 11(4):531-548 (1986) for revised treatment, and Madroņo 50(2):110-114 (2003) for pollinator information.
full namePholisma sonorae (Gray) Yatskievych
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  PHSO Element Code  PDLNN02020
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

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 Thu, Dec. 2, 2021 from

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