Corylus cornuta Marshall var. cornuta . Section: Corylus. Subsection: Siphonochlamys. Beaked Hazel. Phen: Feb-Apr; Aug-Oct. Hab: Dry rocky woodlands, thickets, high elevation forests and openings, seepage swamps. Dist: The species ranges from NL (Newfoundland) west to BC, south to NJ, n. GA, e. TN (Chester, Wofford, & Kral 1997), OH, MO, CO, and CA.

Origin/Endemic status: Native

Taxonomy Comments: Var. cornuta occupies most of the range of the species; var. californica (A.L.P.P. de Candolle) Sharp [ssp. californica (A.L.P.P. de Candolle) E. Murray], a small tree, is far western and grades into var. cornuta.

Synonymy ⓘ: = K1, K3, K4, Va, Furlow (1990); = Corylus cornuta Marshall ssp. cornuta – FNA3, NE, NY; = Corylus rostrata – S13; < Corylus cornuta Marshall – C, F, G, GrPl, Il, Mi, Pa, RAB, S, Tat, Tn, W, WV, Hardin (1971a)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU (name change)
• Eastern Mountains and Piedmont: FACU (name change)
• Great Plains: UPL (name change)
• Midwest: UPL (name change)
• Northcentral & Northeast: FACU (name change)

Heliophily ⓘ: 5