CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record sclerocactus_polyancistrus - Thu, Dec. 2, 2021, 07:53 ET b
Sclerocactus polyancistrus
common nameMojave fish-hook cactus
CalPhotos image
more photos
© 1997 Larry Blakely  Follow image link for photo data.
life form stem succulent
CA Rare Plant Rank
List 4.2
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S3      ranking system key
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Counties, states, regions:
Inyo (INY), Kern (KRN), San Bernardino (SBD), Nevada (NV)
  • Pending additional quad-level data, only county data are being provided for List 4 plants.
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Great Basin scrub (GBScr)
•Joshua tree "woodland" (JTWld)
•Mojavean desert scrub (MDScr)/usually carbonate
blooming period Apr-Jul  
elevation range640 - 2320 meters
Threatened by horticultural collecting, herbivory by insects, and vehicles. Possibly threatened by grazing and development. Does not usually survive transplanting. See Proceedings of the American Academy of Arts and Sciences 3:272 (1856) for original description, Cactus and Succulent Journal 51:228-232 (1979) for ecological information, and Fremontia 10(4):23-24 (1983) for species account.
full nameSclerocactus polyancistrus (Engelm. & Bigel.) Britt. & Rose
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  SCPO4 Element Code  PDCAC0J050
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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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 Thu, Dec. 2, 2021 from

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