Species Details
Rhamnus alnifolia
alder buckthorn
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Species Description:
Rhamnus alnifolia, commonly known as alder buckthorn, is a perennial deciduous shrub in the Rhamnaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, Meadows and seeps, Riparian scrub, and Upper montane coniferous forest, growing at elevations from 1370 to 2130 meters. Rhamnus alnifolia is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.|
Scientific Name: Rhamnus alnifolia L'Her |
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Common Name: alder buckthorn |
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| Family: | Rhamnaceae | |
| Element Code: | PDRHA0C010 | |
| USDA Plants Symbol: | RHAL | |
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Synonyms/Other Names: |
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| Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 2B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G5 |
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State Rank: |
S3 |
| Other Status: | SB_UCSC |
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CRPR Changes: added to 2.2 on 2008-03-26 |
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| Add Date: | 2008-03-26 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial deciduous shrub | ||||||||||||||
Blooming Period: May-Jul
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Elevation:
1370 - 2130 meters 4495 - 6990 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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| Threat List Total: | 5 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 8 | 30 % |
| THREAT LIST: | ||
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| Logging | 4 | 14% |
| Road/trail construction/maint. | 1 | 3% |
| Dam/Inundation | 1 | 3% |
| Development | 1 | 3% |
| Grazing | 1 | 3% |
| Total Occurrences: | 27 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 3 | 4 | 0 | 0 | 1 | 19 |
| Occurrence Status: | |||||
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| Historical >20 Years | 20 | ||||
| Recent <=20 Years | 7 | ||||
| Presence: | |||||
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| Presumed Extant | 26 | ||||
| Possibly Extirpated | 1 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA), Idaho (ID), Oregon (OR), Utah (UT), Washington (WA), Wyoming (WY) |
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California Counties and Islands: Name (Code) Butte (BUT), Lassen (LAS), Nevada (NEV), Placer (PLA), Plumas (PLU), Sierra (SIE) |
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Quads: Name (Quad Code) Antelope Lake (4012025), Bucks Lake (3912182), Canyondam (4012121), Caribou (4012112), Cisco Grove (3912035), Gold Lake (3912066), Hobart Mills (3912042), Independence Lake (3912043), Janesville (4012035), Martis Peak (3912031), Mt. Fillmore (3912067), Norden (3912033), Soapstone Hill (3912173), Soda Springs (3912034), Spring Garden (3912087), Tahoe City (3912022), Taylorsville (4012017), Truckee (3912032), Westwood West (4012131) |
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Notes:
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Presumed Extant
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