Taxon Details
Calochortus tiburonensis
Tiburon mariposa-lily
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Taxon Summary:
Calochortus tiburonensis, commonly known as Tiburon mariposa-lily, is a perennial bulbiferous herb in the Liliaceae that is found only in California. It occurs within Valley and foothill grassland, growing at elevations from 50 to 150 meters. Calochortus tiburonensis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Calochortus tiburonensis Hill |
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Common Name: Tiburon mariposa-lily |
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| Family: | Liliaceae | |
| Element Code: | PMLIL0D1C0 | |
| USDA Plants Symbol: | CATI3 | |
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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.1 |
| Fed List: | FT (1995-02-03) |
| State List: | CT (1987-05-01) |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2021-07-14 |
| Lifeform: perennial bulbiferous herb | ||||||||||||||
Blooming Period: Mar-Jun
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Elevation:
50 - 150 meters 165 - 490 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Known from only one occurrence at Ring Mtn. Preserve on the Tiburon Peninsula. Threatened by recreational activities and non-native plants. Potentially threatened by deer browsing. See Madroño 22(2):100-104 (1973) for original description, and Journal of Ecology 75:977-995 (1987) for population biology. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 2 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 100 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 1 | 100% |
| Non-native plant impacts | 1 | 100% |
| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 0 | 0 | 0 | 0 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| 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) Marin (MRN) |
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Quads: Name (Quad Code) San Quentin (3712284) |
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Notes:
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Presumed Extant
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