Contains 4 accepted taxa overall.

Characteristics
Alnus Mill.
ALDER
Classification
Magnoliophyta - Flowering Plants
Magnoliopsida
Hamamelidae
Fagales
Alnus
Citation
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TYPE: Alnus glutinosa (Linnaeus) Gaertner (Betula alnus Linnaeus, var. glutinosa Linnaeus) Lectotypified by Furlow, Rhodora 81: 74. 1979.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Alnus glutinosa Black alder; European alder Not Native FACW (NWPL)
Alnus incana Speckled alder Native FACW (NWPL)
Alnus incana subsp. rugosa Speckled alder Native OBL (NWPL)
Alnus serrulata Common alder; Smooth alder Native OBL (NWPL)
Identification Key

No identification key is available for this family.

Genus Synonyms
Synonym Full Citation Basionym Type
No synonyms found.