Species Details

Calochortus clavatus var. gracilis

slender mariposa-lily

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Scientific Name:
Calochortus clavatus Wats. var. gracilis Ownbey
Common Name:
slender mariposa-lily
Family: Liliaceae
Element Code: PMLIL0D096
USDA Plants Symbol: CACLG
Synonyms/Other Names:
Lifeform: perennial bulbiferous herb
Blooming Period: Mar-Jun(Nov)
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Elevation:
320 - 1000 meters
1050 - 3280 feet
General Habitats:
  • Chaparral
  • Coastal scrub
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
Notes:
Threatened by development, mining, non-native plants, and vehicles. Possibly threatened by foot traffic. See Annals of the Missouri Botanical Garden 27(4):371-561 (1940) for original description.
Threats:
Taxonomy:
Threat List Total: 14
Total EOs % of EOs
EOs with Threat Listed: 73 51 %
THREAT LIST:
Development 40 27%
Other 16 11%
Recreational use (non-ORV) 8 5%
Road/trail construction/maint. 8 5%
ORV activity 4 2%
Total Occurrences: 143
Element Occurrence Ranks:
A B C D X U
7 33 28 9 3 63
Occurrence Status:
Historical >20 Years 23
Recent <=20 Years 120
Presence:
Presumed Extant 140
Possibly Extirpated 0
Presumed Extirpated 3
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Ventura (VEN)
Quads: Name (Quad Code)
Agua Dulce (3411843), Azusa (3411728), Black Mtn. (3411867), Burbank (3411823), Calabasas (3411826), Camarillo (3411921), Crystal Lake (3411737), Green Valley (3411854), Lake Hughes (3411864), Liebre Mtn. (3411866), Malibu Beach (3411816), Mint Canyon (3411844), Mount San Antonio (3411736), Mt. Baldy (3411726), Newhall (3411845), Oat Mountain (3411835), Piru (3411847), Point Dume (3411817), San Fernando (3411834), Santa Susana (3411836), Sleepy Valley (3411853), Thousand Oaks (3411827), Topanga (3411815), Val Verde (3411846), Warm Springs Mountain (3411855), Whitaker Peak (3411856)
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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