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Leaves:
Lanceolate to ovate-lanceolate; 2" to 4" long, 1/2"
to 1-1/2" wide; narrowest leaf of the cottonwoods found in Utah;
long, tapered apex; deciduous; finely to coarsely serrate; petiole
short (less than 1/3 length of blade) and not flattened laterally.
Twigs/buds: Twigs slender; round; glabrous; yellow-green when young
and light gray when older. Terminal bud 1/4" to 3/4" long,
sharp-pointed, resinous and aromatic, covered by brown overlapping
scales.
Flowers/fruit: Fruit an oval capsule, 1/4" long, several together
on a slender stalk like a string of beads; seeds tufted, small,
light brown.
Bark: Smooth and light yellow-green when young, becoming shallowly
furrowed on older trunks.
Wood: Unimportant and seldom used. See eastern cottonwood for description.
General: Native in from western Great Plains through the Intermountain
West from Mexico to Canada, including most of Utah. Grows along
streams at moderate to low elevations; prefers moist soils and is
shade intolerant. Utah's most common native cottonwood. Crowns tend
to be somewhat narrow. Easily identified by its narrow leaves, but
can hybridize with some cottonwoods. One common hybrid is lanceleaf
cottonwood (Populus x acuminata), a cross between P. angustifolia
and either P. deltoides, P. fremontii, or P. balsamifera.
Landscape Use: Rarely used and no cultivars are available. Would
be alright where a cottonwood is appropriate (needs plenty of water).
Cottonwoods and willows can easily be propagated by taking 10"
or longer cuttings off of young branches in the winter and planting
them in the spring with about an inch showing above ground. The
resulting tree is genetically identical to the original. Zones 3-9.
Comments & Limitations:
- Weak wood and/or branch structure.
- Prefers abundant water.
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Range map from Digital
Atlas of the Vascular Plants of Utah
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