Species Details
Cordylanthus nidularius
Mt. Diablo bird's-beak
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Species Description:
Cordylanthus nidularius, commonly known as Mt. Diablo bird's-beak, is a annual herb (hemiparasitic) in the Orobanchaceae that is found only in California. It occurs within Chaparral, growing at elevations from 600 to 800 meters. Cordylanthus nidularius is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Cordylanthus nidularius J.T. Howell |
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Common Name: Mt. Diablo bird's-beak |
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| Family: | Orobanchaceae | |
| Element Code: | PDSCR0J0F0 | |
| USDA Plants Symbol: | CONI2 | |
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Synonyms/Other Names: |
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| Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | CR (1978-11-01) |
| 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: | 2022-12-06 |
| Lifeform: annual herb (hemiparasitic) | ||||||||||||||
Blooming Period: Jun-Aug
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Elevation:
600 - 800 meters 1970 - 2625 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 on Mt. Diablo. Threatened by trail construction and recreation, and possibly by fire suppression. See Leaflets of Western Botany 3(9):207 (1943) for original description, and Systematic Botany Monographs 10:48-50 (1986) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 3 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 50 % |
| THREAT LIST: | ||
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| Feral pigs | 1 | 50% |
| Foot traffic/trampling | 1 | 50% |
| Road/trail construction/maint. | 1 | 50% |
| Total Occurrences: | 2 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 0 | 1 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 2 | ||||
| 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) Contra Costa (CCA) |
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Quads: Name (Quad Code) Clayton (3712188) |
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Notes:
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Presumed Extant
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