Taxon Details
Calochortus westonii
Shirley Meadows star-tulip
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Taxon Summary:
Calochortus westonii, commonly known as Shirley Meadows star-tulip, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Broadleafed upland forest, Lower montane coniferous forest, and Meadows and seeps, growing at elevations from 1500 to 2105 meters. Calochortus westonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Calochortus westonii Eastw. |
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Common Name: Shirley Meadows star-tulip |
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| Family: | Liliaceae | |
| Element Code: | PMLIL0D1M0 | |
| USDA Plants Symbol: | CAWE2 | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3 |
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State Rank: |
S3 |
| Other Status: | BLM_S; SB_CalBG/RSABG; SB_UCSC; USFS_S |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial bulbiferous herb | ||||||||||||||
Blooming Period: May-Jun
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Elevation:
1500 - 2105 meters 4920 - 6905 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 11 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 14 | 58 % |
| THREAT LIST: | ||
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| Logging | 9 | 37% |
| Improper burning regime | 5 | 20% |
| Grazing | 3 | 12% |
| Other | 3 | 12% |
| Road/trail construction/maint. | 2 | 8% |
| Wood cutting or brush clearing | 1 | 4% |
| Over-collecting/poaching | 1 | 4% |
| Recreational use (non-ORV) | 1 | 4% |
| ORV activity | 1 | 4% |
| Development | 1 | 4% |
| Foot traffic/trampling | 1 | 4% |
| Total Occurrences: | 24 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 7 | 12 | 2 | 0 | 0 | 3 |
| Occurrence Status: | |||||
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| Historical >20 Years | 20 | ||||
| Recent <=20 Years | 4 | ||||
| Presence: | |||||
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| Presumed Extant | 24 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Kern (KRN), Tulare (TUL) |
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Quads: Name (Quad Code) Alta Sierra (3511865), Camp Nelson (3611825), Camp Wishon (3611826), Case Mountain (3611847), Johnsondale (3511885), Sentinel Peak (3611815), Tobias Peak (3511875) |
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Notes:
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Presumed Extant
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