Details for: Betula papyrifera subsp. occidentalis

2 different source(s) use this name:

- Govaerts, R. & Frodin, D. G. 1998: World Checklist and Bibliography of Fagales. RBG Kew.
- USDA Plants Database, generated January 15, 1997

Source: Govaerts, R. & Frodin, D. G. 1998: World Checklist and Bibliography of Fagales. RBG Kew. [IOPI preferred view] Name: Betula papyrifera subsp. occidentalis (Hook.) Hultén Nomencl. ref. in ?, Rank: Subspecies Status: SYNONYM Synonym of: Betula occidentalis Hook. Taxon Notes:   SourceStatusDesignation: S

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Source: USDA Plants Database, generated January 15, 1997 Name: Betula papyrifera subsp. occidentalis (Hook.) Hulten Rank: Subspecies Status: SYNONYM Synonym of: Betula occidentalis Hook.   Geography: US(AK, AZ, CA, CO, ID, MT, NE, NV, NM, ND, OR, SD, UT, WA, WY) Reference in Source: For reference information check with USDA NRCS Plants Database at http://plants.usda.gov/ SourceStatusDesignation: S

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