CNPS Inventory Plant Detail

Ivesia pickeringii

Common Name:	Pickering's ivesia
Family:	Rosaceae
Synonyms:
Element Code:	PDROS0X0D0
Full Name:	Ivesia pickeringii Gray
USDA PLANTS Symbol:	IVPI

Biology
Lifeform: perennial herb Blooming Period: June - October Habitat: mesic, clay, usually serpentinite seeps. • Lower montane coniferous forest • Meadows and seeps

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 12
Element Occurrence Ranks:

A B C D X U

4 4 3 0 0 1

Population Status:

Historic >20 yrs	Recent <=20 yrs
0	12

Presence:

Present Extant	Possibly Extirpated	Extirpated
12	0	0

Notes

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.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2012-05-17

Location

Elevation: 800 - 1510 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Siskiyou (SIS), Trinity (TRI)

Quads: name (DWR code) USGS code
Covington Mill (667A) 40122H7, Tangle Blue Lake (683B) 41122B6, Whisky Bill Peak (683D) 41122A5, Weed (699B) 41122D4, China Mtn. (700A) 41122D5, Scott Mountain (700C) 41122C6, Callahan (701D) 41122C7

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

933

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-122.625,41.125