Taxon Details
Calochortus weedii var. intermedius
intermediate mariposa-lily
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Taxon Summary:
Calochortus weedii var. intermedius, commonly known as intermediate mariposa-lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Chaparral, Coastal scrub, and Valley and foothill grassland, growing at elevations from 105 to 855 meters. Calochortus weedii var. intermedius is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Scientific Name: Calochortus weedii A.W. Wood var. intermedius Ownbey |
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Common Name: intermediate mariposa-lily |
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Family: | Liliaceae | |
Element Code: | PMLIL0D1J1 | |
USDA Plants Symbol: | CAWEI | |
Synonyms/Other Names: |
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Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
CA Rare Plant Rank: | 1B.2 |
Fed List: | None |
State List: | None |
Global Rank: | G3G4T3 |
State Rank: |
S3 |
Other Status: | SB_CalBG/RSABG; USFS_S |
CRPR Changes: |
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Add Date: | 1994-01-01 |
Date Edited: | 2022-04-05 |
Lifeform: perennial bulbiferous herb | ||||||||||||||
Blooming Period: May-Jul
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Elevation:
105 - 855 meters 345 - 2805 feet |
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General Habitats:
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Microhabitat Details: calcareous | ||||||||||||||
Microhabitat:
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Notes: Threatened by development, non-native plants, road construction, and fuel modification. Potentially threatened by frequent wildfires and horticultural collecting. Intergrades with var. weedii; hybridizes with C. plummerae. See Annals of the Missouri Botanical Garden 27(4):519 (1940) for original description. |
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Threats: |
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Taxonomy: |
Threat List Total: | 12 | |
Total EOs | % of EOs | |
EOs with Threat Listed: | 86 | 43 % |
THREAT LIST: | ||
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Road/trail construction/maint. | 51 | 25% |
Development | 42 | 21% |
Other | 20 | 10% |
Non-native plant impacts | 14 | 7% |
Erosion/runoff | 11 | 5% |
Wood cutting or brush clearing | 10 | 5% |
Foot traffic/trampling | 8 | 4% |
ORV activity | 6 | 3% |
Improper burning regime | 4 | 2% |
Landfill | 4 | 2% |
Recreational use (non-ORV) | 3 | 1% |
Grazing | 1 | 0% |
Total Occurrences: | 199 | ||||
Element Occurrence Ranks: | |||||
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A | B | C | D | X | U |
8 | 25 | 16 | 5 | 5 | 140 |
Occurrence Status: | |||||
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Historical >20 Years | 53 | ||||
Recent <=20 Years | 146 |
Presence: | |||||
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Presumed Extant | 194 | ||||
Possibly Extirpated | 3 | ||||
Presumed Extirpated | 2 |
California Endemic: | |||||||||||||
California Island: | |||||||||||||
States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Bernardino (SBD) |
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Quads: Name (Quad Code) Alberhill (3311764), Azusa (3411728), Black Star Canyon (3311776), Canada Gobernadora (3311755), Corona South (3311775), Cucamonga Peak (3411725), Dana Point (3311746), El Monte (3411811), El Toro (3311766), La Habra (3311788)*, Laguna Beach (3311757), Mt. Baldy (3411726), Murrieta (3311752), Orange (3311777), Prado Dam (3311786), San Clemente (3311745), San Dimas (3411717), San Juan Capistrano (3311756), Santiago Peak (3311765), Vail Lake (3311648), Whittier (3311881), Winchester (3311761), Yorba Linda (3311787) |
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Notes:
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