Wildflowers of Tucson, Arizona
Pink Wildflower
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Polygonum pensylvanicum - Pennsylvania Smartweed Polygonum pensylvanicum - Pennsylvania Smartweed
Scientific Name: Polygonum pensylvanicum
Common Name: Pennsylvania Smartweed, Pinkweed, Pink Knotweed
Flower Color: Pink to white
Plant Type: Herb, Annual
Height: To 3 feet (91 cm) tall or more
Date Observed: May 15, 2004
Notes: The flower spikes are 2 inches (5 cm) long. The leaves are green, alternate, lance-shaped, and up to 6 inches (15 cm) long. The stems are jointed with a distinctive smooth-edged sheath covering each joint. This native plant grows in moist areas near water.
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