Taxon Details
Ceanothus impressus var. impressus
Santa Barbara ceanothus
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© 2005 Dieter Wilken |
Taxon Summary:
Ceanothus impressus var. impressus, commonly known as Santa Barbara ceanothus, is a perennial shrub in the Rhamnaceae that is . It occurs within Chaparral, growing at elevations from 40 to 470 meters. Ceanothus impressus var. impressus is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Ceanothus impressus Trel. var. impressus |
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Common Name: Santa Barbara ceanothus |
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| Family: | Rhamnaceae | |
| Element Code: | PDRHA040L1 | |
| USDA Plants Symbol: | CEIMI | |
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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: | G3T3 |
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State Rank: |
S3 |
| Other Status: | |
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CRPR Changes: changed from CBR to 1B.2 on 2019-05-15 |
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| Add Date: | 2006-01-10 |
| Date Edited: | 2023-08-01 |
| Lifeform: perennial shrub | ||||||||||||||
Blooming Period: Feb-Apr
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Elevation:
40 - 470 meters 130 - 1540 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: See Proceedings of the California Academy of Sciences, Series 2 1(8):112 (1888) for original description and Ceanothus pp. 219-220 (1942) by H. McMinn for revised nomenclature. |
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Threats: Possibly threatened by development, non-native plants, and road and trail construction and maintenance. |
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Taxonomy: |
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| Threat List Total: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 9 | 24 % |
| THREAT LIST: | ||
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| Development | 7 | 18% |
| Road/trail construction/maint. | 2 | 5% |
| Improper burning regime | 1 | 2% |
| Non-native plant impacts | 1 | 2% |
| Other | 1 | 2% |
| Total Occurrences: | 37 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 1 | 1 | 0 | 35 |
| Occurrence Status: | |||||
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| Historical >20 Years | 32 | ||||
| Recent <=20 Years | 5 | ||||
| Presence: | |||||
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| Presumed Extant | 37 | ||||
| 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) Santa Barbara (SBA) |
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Quads: Name (Quad Code) Casmalia (3412075), Guadalupe (3412085), Lompoc (3412064), Los Alamos (3412063), Point Arguello (3412056), Point Sal (3412086), Surf (3412065), Tranquillon Mtn. (3412055) |
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Notes:
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Presumed Extant
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