Species Details

Calochortus persistens

Siskiyou mariposa-lily

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Photo of Calochortus persistens
©2014 Scot Loring
Photo of Calochortus persistens
©2014 Scot Loring
Photo of Calochortus persistens
©2019 John Doyen
Scientific Name:
Calochortus persistens Ownbey
Common Name:
Siskiyou mariposa-lily
Family: Liliaceae
Element Code: PMLIL0D140
USDA Plants Symbol: CAPE
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: Jun-Jul
JFMAMJJASOND
Elevation:
1000 - 1860 meters
3280 - 6105 feet
General Habitats:
  • Lower montane coniferous forest
  • North Coast coniferous forest
Microhabitat Details:
Microhabitat:
  • Acidic
  • Rocky
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. Previously a candidate for federal listing. See Annals of the Missouri Botanical Garden 27:448 (1940) for original description.
Threats:
Taxonomy:
Threat List Total: 10
Total EOs % of EOs
EOs with Threat Listed: 4 50 %
THREAT LIST:
Logging 3 37%
Non-native plant impacts 3 37%
Non-native animal impacts 2 25%
ORV activity 1 12%
Other 1 12%
Total Occurrences: 8
Element Occurrence Ranks:
A B C D X U
1 4 0 0 0 3
Occurrence Status:
Historical >20 Years 2
Recent <=20 Years 6
Presence:
Presumed Extant 8
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Siskiyou (SIS)
Quads: Name (Quad Code)
Badger Mtn. (4112276), Cottonwood Peak (4112286), Gazelle Mtn. (4112246), Hornbrook (4112285), Indian Creek Baldy (4112267), McKinley Mtn. (4112277), Yreka (4112266)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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