familyUlmaceae
genusUlmus

Ulmus alata

Michaux

Fl. Bor.-Amer. 1: 173. 1803.

Common names: Winged elm wahoo
EndemicIllustrated
Synonyms: Ulmus americana var. alata (Michaux) Spach
Treatment appears in FNA Volume 3.

Trees, 10-18 m; crowns open. Bark light-brown to gray with shallow ridges and plates. Wood hard. Branches: young and old-growth branches with opposite, prominent, regular corky wings; twigs reddish-brown, pubescent to glabrous. Buds: apex acute; scales brown to rusty, slightly pubescent. Leaves: petiole ca. 2.5 mm, pubescent. Leaf-blade lanceolate to oblanceolate, 3-6.9 × 0.6-3.2 cm, base somewhat cordate to oblique, margins doubly serrate, apex acute; surfaces abaxially with trichomes on veins, tufts of pubescence in axils of veins, adaxially glabrous to scabrous. Inflorescences short racemes, not pendulous, less than 2.5 cm; pedicel 2-7 mm, not fully expanded until fruiting stage. Flowers: calyx deeply lobed, symmetric, lobes 5; stamens 5; anthers red. Samaras gray-tan, often reddish tinged, lanceolate to oblongelliptic, ca. 8 mm, narrowly winged, margins ciliate, cilia white, 1-2 mm. Seeds slightly thickened, not inflated. 2n = 28.


Phenology: Flowering late winter–early spring.
Habitat: Alluvial woods and deciduous woodlands, especially dry, acidic woodlands and glades, along fencerows, waste areas, planted as street trees
Elevation: 0-600 m

Distribution

V3 1151-distribution-map.gif

Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Miss., Mo., N.C., Ohio, Okla., S.C., Tenn., Tex., Va.

Discussion

Often planted as a shade tree in the southern United States, Ulmus alata is also cultivated outside North America.

The name Ulmus pumila was incorrectly applied to this species by Walter in 1788.

Selected References

None.

Lower Taxa

None.
... more about "Ulmus alata"
longitudinal +
Susan L. Sherman-Broyles +
Michaux +
light-brown;gray +
smooth +  and deeply fissured +
cordate;oblique +
slender;stout +
thick-walled +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Winged elm +  and wahoo +
subsessile +  and pedunculate +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Miss. +, Mo. +, N.C. +, Ohio +, Okla. +, S.C. +, Tenn. +, Tex. +  and Va. +
0-600 m +
curved +  and straight +
absent;scanty +
sigmoid +  and curved +
distinct +  and free +
sessile +  and pedicellate +
Alluvial woods and deciduous woodlands, especially dry, acidic woodlands and glades, along fencerows, waste areas, planted as street trees +
0 cm0 mm <br />0 m <br /> (?) +  and 2.5 cm25 mm <br />0.025 m <br /> (?) +
pinnate +  and palmate-pinnate +
3 cm30 mm <br />0.03 m <br /> (6.9 cm69 mm <br />0.069 m <br />) +
lanceolate;oblanceolate +
0.6cm;3.2cm +
distichous +  and alternate +
deciduous +
toothed +, crenate +  and serrate +
amphitropous +, anatropous +  and pendulous +
expanded +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (?) +
Flowering late winter–early spring. +
2(-3)-carpellate +
Fl. Bor.-Amer. +
subsessile +  and pedunculate +
shallow +
reddish tinged;gray-tan +
lanceolate;oblongelliptic +
brown +  and rusty +
not inflated +
valvate +  and imbricate +
persistent +
W1 +, Endemic +  and Illustrated +
hypogynous +
persistent +
distinct +
2-lobed +
Ulmus americana var. alata +
Ulmus alata +
species +
adaxially glabrous;scabrous +
reddish-brown +
pubescent;glabrous +