Ulmus crassifolia


Trans. Amer. Philos. Soc., n.s. 5: 169. 1837.

Common names: Cedar elm
Treatment appears in FNA Volume 3.
Revision as of 22:46, 5 November 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Trees, 24-27 m; crowns rounded to narrow. Bark light brown with shallow ridges and large plates. Wood hard. Branches often with opposite corky wings; twigs reddish brown, pubescent. Buds brown, apex acute, pubescent; scales dark brown, shiny, glabrous. Leaves: petiole ca. 1.5 mm, pubescent. Leaf blade ovate to elliptic, 2.5-5 × 1.3-2 cm, base oblique or rounded to cuneate, margins crenate to doubly serrate, apex obtuse; surfaces abaxially softly pubescent, adaxially harshly pubescent. Inflorescences fascicles, 2-5-flowered, 0.5 cm; pedicel 0.75-1 cm. Flowers: calyx deeply lobed, more than 1/2 its length, lobes 6-9, hairy; stamens 5-6, anthers reddish purple; stigmas white, pubescent, exserted and spreading. Samaras green to tan, elliptic to oval, ca. 0.75-1 cm, pubescent, margins ciliate, cilia ca. 0.5 mm. Seeds somewhat thickened, not inflated. 2n = 28.

Phenology: Flowering late summer–early fall.
Habitat: Stream banks, low woods, low hillsides, roadsides, waste places, sometimes shade trees
Elevation: 0-500 m


V3 172-distribution-map.gif

Ark., Fla., La., Miss., Okla., Tenn., Tex., n Mexico.


Except for the Suwanee River valley in Florida, Ulmus crassifolia has not been found east of Webster County, Mississippi. It hybridizes with U. serotina.

Lower Taxa

... more about "Ulmus crassifolia"
Susan L. Sherman-Broyles +
Nuttall +
Cedar elm +
Ark. +, Fla. +, La. +, Miss. +, Okla. +, Tenn. +, Tex. +  and n Mexico. +
0-500 m +
Stream banks, low woods, low hillsides, roadsides, waste places, sometimes shade trees +
Flowering late summer–early fall. +
Trans. Amer. Philos. Soc., n.s. +
daniel1967a +  and sherman-broyles1992a +
Ulmus crassifolia +
species +