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Ulmus
ELM

Higher Taxonomy
Family: UlmaceaeView Description 

Common Name: ELM FAMILY
Habit: Tree. Leaf: simple, alternate, 2-ranked; veins pinnate; stipules deciduous. Flower: radial; sepals 4--9, free to fused; corolla 0; stamens 4--9, opposite sepals; ovary superior, chamber 1, ovule 1, style branches 2. Fruit: 2-winged nutlet.
Genera In Family: 7 genera, +- 60 species: temperate to tropics; some cultivated for ornamental (Ulmus, Zelkova), used for wood (especially Ulmus). Note: Celtis moved to Cannabaceae.
eFlora Treatment Author: Alan T. Whittemore
Scientific Editor: Bruce G. Baldwin.

Ulmus
Habit: Deciduous. Leaf: serrate (or doubly so), base generally oblique, 2° veins straight, parallel, extending to margin, each ending in a tooth; axils of 2° veins generally with prominent tufts of hairs. Inflorescence: umbels or short racemes in leaf axils on old wood; flowers sessile or pedicels 7--17 mm. Flower: bisexual; calyx generally bell-shaped, lobes 4--9; stamens 4--9, exserted; ovary strongly compressed; style divided to base, branches spreading.
Species In Genus: +- 40 species: northern temperate. Note: Widely cultivated as street trees; flowers, fruit needed for identification.
eFlora Treatment Author: Alan T. Whittemore
Jepson Online Interchange
Key to Ulmus

Previous taxon: Ulmaceae
Next taxon: Ulmus americana

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Citation for this treatment: Alan T. Whittemore 2016. Ulmus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10753, accessed on September 24, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 24, 2016.


Ulmus pumila
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© 2015 Steve Matson
Ulmus minor
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© 2012 Neal Kramer
Ulmus pumila
click for enlargement
© 2015 Steve Matson
Ulmus americana
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© 2016 Keir Morse
Ulmus pumila
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© 2015 Steve Matson
Ulmus minor
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© 2012 Neal Kramer

More photos of Ulmus in CalPhotos