Species Details
Cordylanthus tenuis ssp. pallescens
pallid bird's-beak
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©2018 Sierra Pacific Industries |
©2018 Sierra Pacific Industries |
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Scientific Name: Cordylanthus tenuis Gray ssp. pallescens (Penn.) Chuang & Heckard |
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Common Name: pallid bird's-beak |
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| Family: | Orobanchaceae | |
| Element Code: | PDSCR0J0S3 | |
| USDA Plants Symbol: | COTEP2 | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4G5T1 |
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State Rank: |
S1 |
| Other Status: | BLM_S; SB_CalBG/RSABG; SB_UCSC; USFS_S |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: annual herb (hemiparasitic) | ||||||||||||||
Blooming Period: Jul-Sep
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Elevation:
695 - 1645 meters 2280 - 5395 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Threatened by development and road maintenance. Intergrades with ssp. tenuis and ssp. viscidus; core populations of ssp. pallescens should be prioritized for conservation. See Proceedings of the Academy of Natural Sciences of Philadelphia 99(7):197-198 (1947) for original description, Systematic Botany Monographs 10:50-62 (1986) for taxonomic treatment, and Madroño 61(1):64-76 (2014) for taxonomic treatment and disussion of management. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 10 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 9 | 50 % |
| THREAT LIST: | ||
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| Road/trail construction/maint. | 8 | 44% |
| Biocides | 7 | 38% |
| Logging | 6 | 33% |
| Development | 3 | 16% |
| Foot traffic/trampling | 3 | 16% |
| Other | 2 | 11% |
| Recreational use (non-ORV) | 1 | 5% |
| ORV activity | 1 | 5% |
| Grazing | 1 | 5% |
| Vandalism/dumping/litter | 1 | 5% |
| Total Occurrences: | 18 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 2 | 4 | 6 | 0 | 0 | 6 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 15 | ||||
| Presence: | |||||
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| Presumed Extant | 18 | ||||
| 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) Siskiyou (SIS) |
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Quads: Name (Quad Code) City of Mount Shasta (4112233), Hotlum (4112243), Mt. Shasta (4112242), Weed (4112244) |
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Notes:
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Presumed Extant
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