Taxon Details

Calochortus simulans

La Panza mariposa-lily

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Photo of Calochortus simulans
© 2011 Aaron E. Sims
Photo of Calochortus simulans
© 2011 Aaron E. Sims
Photo of Calochortus simulans
© 2011 Chris Winchell

Taxon Summary:

Calochortus simulans, commonly known as La Panza mariposa-lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Lower montane coniferous forest, and Valley and foothill grassland, growing at elevations from 325 to 1150 meters. Calochortus simulans is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Lifeform: perennial bulbiferous herb
Blooming Period: Apr-Jun
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Elevation:
325 - 1150 meters
1065 - 3775 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Granitic (often)
  • Sandy
  • Serpentine (sometimes)
Notes:
Threatened by grazing and development. Potentially threatened by road construction and mainetenance. Possibly threatened by recreational activities, vehicles, and non-native plants. Apparently intergrades with C. venustus. See Leaflets of Western Botany 4:4 (1944) for original description.
Threats:
Taxonomy:
Threat List Total: 13
Total EOs % of EOs
EOs with Threat Listed: 66 60 %
THREAT LIST:
Grazing 34 30%
Non-native plant impacts 16 14%
Improper burning regime 15 13%
Other 12 10%
Development 10 9%
Total Occurrences: 110
Element Occurrence Ranks:
A B C D X U
5 30 24 9 0 42
Occurrence Status:
Historical >20 Years 21
Recent <=20 Years 89
Presence:
Presumed Extant 110
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Atascadero (3512046), Bates Canyon (3411988), Branch Mtn. (3512021), Bryson (3512171), Caldwell Mesa (3512023), California Valley (3512031), Camatta Ranch (3512043), Chimineas Ranch (3511928), Chimney Canyon (3512012), Creston (3512055), La Panza (3512032), Lime Mountain (3512068), Los Machos Hills (3512022), Miranda Pine Mtn. (3512011), Pebblestone Shut-in (3512161), Pismo Beach (3512026), Pozo Summit (3512033), San Luis Obispo (3512036), Santa Margarita (3512045), Santa Margarita Lake (3512034), Shedd Canyon (3512054), Tar Spring Ridge (3512024), Taylor Canyon (3511918), Tierra Redonda Mountain (3512078), Wilson Corner (3512044)
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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