Taxon Details
Ceanothus confusus
Rincon Ridge ceanothus
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© 2012 Jake Ruygt |
© 2016 John Doyen |
© 2017 Zoya Akulova |
Taxon Summary:
Ceanothus confusus, commonly known as Rincon Ridge ceanothus, is a perennial evergreen shrub in the Rhamnaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Closed-cone coniferous forest, growing at elevations from 75 to 1065 meters. Ceanothus confusus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Ceanothus confusus J.T. Howell |
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Common Name: Rincon Ridge ceanothus |
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| Family: | Rhamnaceae | |
| Element Code: | PDRHA04220 | |
| USDA Plants Symbol: | CECO6 | |
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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: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | BLM_S; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2023-08-01 |
| Lifeform: perennial evergreen shrub | ||||||||||||||
Blooming Period: Feb-Jun
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Elevation:
75 - 1065 meters 245 - 3495 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 9 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 12 | 36 % |
| THREAT LIST: | ||
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| Development | 8 | 24% |
| Road/trail construction/maint. | 8 | 24% |
| Agriculture | 4 | 12% |
| ORV activity | 3 | 9% |
| Other | 1 | 3% |
| Recreational use (non-ORV) | 1 | 3% |
| Grazing | 1 | 3% |
| Logging | 1 | 3% |
| Wood cutting or brush clearing | 1 | 3% |
| Total Occurrences: | 33 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 2 | 5 | 0 | 1 | 24 |
| Occurrence Status: | |||||
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| Historical >20 Years | 24 | ||||
| Recent <=20 Years | 9 | ||||
| Presence: | |||||
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| Presumed Extant | 32 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 1 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Lake (LAK), Mendocino (MEN), Napa (NAP), Sonoma (SON) |
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Quads: Name (Quad Code) Bartlett Mtn. (3912227), Calistoga (3812255)?*, Camp Meeker (3812248), Cloverdale (3812371), Detert Reservoir (3812265), Geyserville (3812268), Guerneville (3812258), Kenwood (3812245), Mark West Springs (3812256), Mount St. Helena (3812266), Purdys Gardens (3912311), Rutherford (3812244), Santa Rosa (3812246), Sebastopol (3812247)*, Sonoma (3812234), St. Helena (3812254), The Geysers (3812277), Whispering Pines (3812276), Yorkville (3812382) |
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Notes:
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Presumed Extant
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