Tilia americana Linnaeus var. americana . Section: Tilia. Subsection: Lindnera. Northern Basswood. Phen: May-Jul; Aug-Sep. Hab: Rich coves, rocky slopes, metabasalt boulderfields, rich north-facing river bluffs, calcareous Coastal Plain ravines. Dist: NB and MB south to e. VA, w. NC, and OK.

Origin/Endemic status: Native

Taxonomy Comments: In VA, var. americana occurs throughout the northern half of the state, with scattered populations southward in the mountains. Pigott (2012) recognizes two varieties within what is here treated as var. americana: a more narrowly circumscribed var. americana and var. neglecta.

Synonymy: = Ar, C, K1, K3, K4, NE, NY, Pa, Tn, Va, Hardin (1990), McCarthy (2012); = Tilia americana L. – G, RAB, S13, Tat, W, WV; < Tilia americana L. – FNA6, GrPl, Mi; > Tilia americana L. – F; > Tilia americana L. var. americana – Il, Pigott (2012); > Tilia americana L. var. neglecta (Spach) Fosberg – Il, Pigott (2012); > Tilia glabra Vent. – S; > Tilia neglecta Spach – F, S; > Tilia truncata Spach – S

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
• Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
• Great Plains: FACU (taxonomic split from wetland indicator species)
• Midwest: FACU (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)

Heliophily: 4