CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record ivesia_pickeringii - Thu, Dec. 2, 2021, 23:40 ET b
Ivesia pickeringii
common namePickering's ivesia
CalPhotos image
more photos
Gary Schoolcraft © 1979 CNPS  Follow image link for photo data.
life formperennial herb
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 (7):
Covington Mill (667A) 4012287, Tangle Blue Lake (683B) 4112226, Whisky Bill Peak (683D) 4112215, Weed (699B) 4112244, China Mountain (700A) 4112245, Scott Mountain (700C) 4112236, Callahan (701D) 4112237
quad data info

Counties, states, regions:
Siskiyou (SIS), Trinity (TRI)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Lower montane coniferous forest (LCFrs)
•Meadows and seeps (Medws)/mesic, clay, usually serpentinite seeps
blooming period Jun-Aug(Oct),   Months in parentheses are uncommon.
elevation range800 - 1510 meters
Threatened by grazing, logging, mining, road maintenance, and habitat loss. Klamath NF has adopted species management guidelines. See Proceedings of the American Academy of Arts and Sciences 6:531 (1865) for original description.
full nameIvesia pickeringii Gray
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  IVPI Element Code  PDROS0X0D0
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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