Taxon Details
Cordylanthus tenuis ssp. pallescens
pallid bird's-beak
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©2018 Sierra Pacific Industries |
©2018 Sierra Pacific Industries |
Taxon Summary:
Cordylanthus tenuis ssp. pallescens, commonly known as pallid bird's-beak, is a annual herb (hemiparasitic) in the Orobanchaceae that is found only in California. It occurs within Lower montane coniferous forest (gravelly, and volcanic alluvium), growing at elevations from 695 to 1645 meters. Cordylanthus tenuis ssp. pallescens is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
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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| 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: | 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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