Taxon Report
Allium siskiyouense TraubSiskiyou onion |
 John Doyen 2019 |
Taxon Summary
Allium siskiyouense, commonly known as Siskiyou onion, is a perennial bulbiferous herb in the Alliaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 855 to 2500 meters. Allium siskiyouense is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.Classification
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Scientific Name: |
Allium siskiyouense Traub |
|
Common Name: |
Siskiyou onion |
| Family: | Alliaceae |
| Element Code: | PMLIL02280 |
| USDA Plants Symbol: | ALSI2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial bulbiferous herb |
| Blooming Period: (Apr)May-Jul | (Apr)May-Jul |
| Elevation: | 855-2500 (2805-8205) |
| General Habitats: | Lower montane coniferous forest, Upper montane coniferous forest |
| Microhabitat: | Rocky, Serpentine (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G4 |
|
State Rank: |
S4 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Del Norte (DNT), Humboldt (HUM), Shasta (SHA), Siskiyou (SIS), Tehama (TEH), Trinity (TRI) | |
| Quads: Name (Quad Code) | |
| Billys Peak (4112227), Callahan (4112237), Carrville (4112216), Chanchelulla Peak (4012248), Chimney Rock (4112356), China Mtn. (4112245), Condrey Mtn. (4112288), Damnation Peak (4012285), Devils Punchbowl (4112376), Dubakella Mtn. (4012342), Dutch Creek (4112381), Duzel Rock (4112256), Fish Lake (4112336), Forest Glen (4012333), Gazelle (4112255), Gazelle Mtn. (4112246), Grider Valley (4112362), Grouse Mtn. (4012376), Iron Gate Reservoir (4112284), Junction City (4012361), Kangaroo Mtn. (4112382), Marble Mountain (4112352), Mount Eddy (4112234), Naufus Creek (4012343), Papoose Creek (4012276), Polar Bear Mtn. (4112385), Preston Peak (4112375), Riley Ridge (3912286), Rush Creek Lakes (4012278), Salmon Mtn. (4112324), Scott Mountain (4112236), Seiad Valley (4112372), Sims Mountain (4012365), Smoky Creek (4012332), South China Mtn. (4112235), Summit Valley (4112357), Tangle Blue Lake (4112226), Trinity Center (4012286), Trinity Dam (4012277), Willow Creek (4012386), Ycatapom Peak (4112217), Yreka (4112266) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Selected References
| Allium siskiyouense profile for potential Species of Conservation Concern evaluation (2021) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 March 2025].