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Quaking Aspen
Scientific Name: Populus tremuloides Michx.
Synonym: Populus ×polygonifolia, Populus vancouveriana, Populus tremuloides var. cercidiphylla, Populus cercidiphylla, Populus tremuloides var. aurea, Populus aurea, Populus tremula ssp. tremuloides
Family: Salicaceae
Quaking Aspen (Populus  tremuloides)
Populus tremuloides, Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 590. Courtesy of Kentucky Native Plant Society.
Recommended Temperature Zone:
sunset: 1-7
USDA: 6-10

Heat Tolerance: Not heat resistant

Sun Exposure: Full sun

Origin: Most of North America

Growth Habits: Deciduous small to medium sized tree, 20 to 50 feet tall (6-15 m), 15 to 25 feet in spread (4.5 to 7.5), often occurring in thickets with all the trees suckers of the same root system; heart-shaped to roundish leaves, 1 to 3 inches long (2.5-7.5 cm), turning bright yellow in the fall

Watering Needs: Regular deep watering

Propagation: Cuttings, seeds, suckers

Populus tremuloides: trunk, Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee

Populus tremuloides: leaves, Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee

Blooming Habits:
Dioecious. The male and female trees bear hanging catkins, 1 to 3 inches long (2.5-7.5 cm)

Fruiting Habits:
The fruit, carried by the female trees is a woolly capsule enclosing six to eight small hairy seeds. A single female catkin generates many light green capsules.

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