Taxon Details
Phacelia greenei
Scott Valley phacelia
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© 2011 Steve Matson |
© 2008 Aaron Schusteff |
© 2012 Sierra Pacific Industries |
Taxon Summary:
Phacelia greenei, commonly known as Scott Valley phacelia, is a annual herb in the Hydrophyllaceae that is found only in California. It occurs within Closed-cone coniferous forest, Lower montane coniferous forest, Subalpine coniferous forest, and Upper montane coniferous forest, growing at elevations from 800 to 2440 meters. Phacelia greenei is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Phacelia greenei J.T. Howell |
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Common Name: Scott Valley phacelia |
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| Family: | Hydrophyllaceae | |
| Element Code: | PDHYD0C1V0 | |
| USDA Plants Symbol: | PHGR2 | |
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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: | G2 |
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State Rank: |
S2 |
| Other Status: | BLM_S; USFS_S |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-06-08 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
800 - 2440 meters 2625 - 8005 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Known only in the vicinity of Scott Valley. |
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Threats: Possibly threatened by mining. |
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Taxonomy: Similar to the more widespread P. humilis which is sometimes mistaken for P. greenei outside of Scott Valley; differentiated from P. humilis in having glabrous vs. short-hairy stamens in addition to other characters. |
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| Threat List Total: | 10 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 16 | 67 % |
| THREAT LIST: | ||
|---|---|---|
| Other | 7 | 29% |
| Road/trail construction/maint. | 6 | 25% |
| Logging | 5 | 20% |
| Mining | 5 | 20% |
| Grazing | 5 | 20% |
| ORV activity | 2 | 8% |
| Recreational use (non-ORV) | 1 | 4% |
| Improper burning regime | 1 | 4% |
| Biocides | 1 | 4% |
| Foot traffic/trampling | 1 | 4% |
| Total Occurrences: | 24 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 5 | 10 | 3 | 0 | 0 | 6 |
| Occurrence Status: | |||||
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| Historical >20 Years | 12 | ||||
| Recent <=20 Years | 12 | ||||
| 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) Siskiyou (SIS), Trinity (TRI) |
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Quads: Name (Quad Code) Callahan (4112237), China Mtn. (4112245), Duzel Rock (4112256), Eaton Peak (4112238), Fort Jones (4112257), Greenview (4112258), McConaughy Gulch (4112247), Scott Mountain (4112236), South China Mtn. (4112235), Yreka (4112266) |
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Notes:
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Presumed Extant
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