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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Ulmaceae||View Description||Dichotomous Key|
|Genus: Ulmus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Ulmus pumila L.
Habit: To 25 m; bark deeply ridged, remaining firmly attached, medium gray. Stem: corky outgrowths on branches 0; winter buds dark brown or red-brown, +- spheric to ovoid; inner bud scale margins generally white ciliate. Leaf: 2--8 cm, 1.2--3.5 cm wide, ovate- to lance-elliptic, acute or short-acuminate (acuminate), margins simply or doubly serrate, abaxial surface glabrous or pubescent only on major veins and tufted in vein axils. Inflorescence: flower, fruit before leaves in spring; pedicel +- 0. Fruit: 1--2 cm, 1--1.5 cm wide, +- round (broadly obovate or elliptic), +- white-tan, glabrous except for pubescence on stigmatic surface in notch.
Ecology: Streambanks, washes, bottomland, roadsides, disturbed areas; Elevation: 20--1500 m. Bioregional Distribution: SN, SW, GB; Distribution Outside California: native to northern Asia. Flowering Time: Mar--Apr
eFlora Treatment Author: Alan T. Whittemore
Jepson Online Interchange
Previous taxon: Ulmus parvifolia
Next taxon: Urticaceae
Citation for this treatment: Alan T. Whittemore 2016. Ulmus pumila, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=47484, accessed on February 12, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 12, 2016.