Pennsylvania Smartweed
Pennsylvania Smartweed
Polygonum pensylvanicum L.
Polygonaceae (Smartweed Family)
▲ ▼ mature plants, showing flowers
▲ ▼ inflorescences
▲ ▼ flowers
▲ ▼ stems and ochrea
Pennsylvania Smartweed:
- most common and aggressive of the Smartweed group
- usually much-branched summer annual, 1-3' tall
- terminal flower spikes have pink to white flowers
- stems green to reddish in color; leaves green, lanceolate