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Polygonum pennsylvanicum

Common Name(s):
Pennsylvania smartweed, Pink knotweed
Category:
Wildflowers
Season:
Summer into fall
Height:
1-3 ft.
Foliage:
4 to 6 in. alternate, shiny lanceolate leaves; sheaths without fringes; reddish joints; some plants have small, wicked barbs on slender stems; thickened at nodes
Flower:
Compact 1 to 2 in. spike of small rose-pink flowers
Site:
Moist fields, roadsides, waste places
Life Cycle:
Annual

NCCES plant id: 2695

Polygonum pennsylvanicum Polygonum pennsylvanicum