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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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Show species in Ulmus

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Keith Bradley | Ulmus crassifolia | Original Image ⭷
image of plant© Gary P. Fleming | Ulmus rubra | Original Image ⭷
image of plant© Richard & Teresa Ware | Ulmus serotina CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Erik Danielson | Ulmus glabra source | Original Image ⭷
image of plant© Gary P. Fleming | Ulmus rubra | Original Image ⭷
image of plant© Paul Marcum | Ulmus americana var. americana source | Original Image ⭷

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See something wrong or missing on about Ulmus? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.