CNPS Inventory Plant Detail

Calochortus persistens

Common Name:	Siskiyou mariposa lily
Family:	Liliaceae
Synonyms:
Element Code:	PMLIL0D140
Full Name:	Calochortus persistens Ownbey
USDA PLANTS Symbol:	CAPE

Biology
Lifeform: perennial bulbiferous herb Blooming Period: June - July Habitat: Rocky, acidic. • Lower montane coniferous forest • North Coast coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: FC Species of Concern State Listing Status: CR Rare (07/82) 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: 5
Element Occurrence Ranks:

A B C D X U

0 3 0 0 0 2

Population Status:

Historic >20 yrs	Recent <=20 yrs
2	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
5	0	0

Notes

Threatened by non-native plants, habitat disturbance, road construction, horticultural collecting, grazing, and alteration of fire regimes. As of 2002, no successful reproduction observed in past five years. Klamath NF has adopted species management guidelines. See Annals of the Missouri Botanical Garden 27:448 (1940) 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: 2011-03-29

Location

Elevation: 1000 - 1860 meters

California Endemic: no

States: California, Oregon

California Counties and Islands: name (code)
Siskiyou (SIS)

Quads: name (DWR code) USGS code
Yreka (717B) 41122F6, Indian Creek Baldy (718A) 41122F7, Hornbrook (734A) 41122H5, Cottonwood Peak (734B) 41122H6, Badger Mtn. (734C) 41122G6, McKinley Mtn. (735D) 41122G7

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

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 .

-122.625,41.75