Flora of the Southeastern United States
2022 Edition


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Ulmus Linnaeus. Elm.

Key to Ulmus

A genus of about 25-30 species, trees (rarely shrubs), of temperate and boreal regions of the Northern Hemisphere (most diverse in c. and n. Asia). Subgeneric classification shown in the key follows Whittemore et al. (2021).

Ref: Kurz & Godfrey (1962); Sherman-Broyles (1997) In Flora of North America Editorial Committee (1997); Todzia In Kubitzki, Rohwer, & Bittrich (1993); Whittemore & Olsen (2011); Whittemore et al. (2021); Wiegrefe, Sytsma, & Guries (1994). Show full citations.

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image of plant© Keith Bradley
image of plant© Gary P. Fleming
image of plant© Richard & Teresa Ware
image of plant© Erik Danielson source
image of plant© Gary P. Fleming
image of plant© Paul Marcum source