Alnus occidentalis Dippel, Handb. Laubholzk. 2: 158 (1891), non Rérolle (1884), fossil name.
This name is a synonym.
| Accepted Name: | Alnus incana subsp. tenuifolia (Nutt.) Breitung, Amer. Midl. Naturalist 58: 25 (1957). |
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| Family: | Betulaceae |
| Homotypic Names: | |
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Alnus tenuifolia var. occidentalis Callier in C.K.Schneider, Handb. Laubholzk. 1: 133 (1904). |
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| Original Compiler: | R.Govaerts |