Polygonum convolvulus - Wild buckwheat
Family Polygonaceae
Click here for a web
page that compares this weed to other common vine weeds in Oregon nurseries.
Wild buckwheat is an annual that spreads by seed. It is a creeping
vine common in nursery stock.
Cotyledons are linear while first true leaves are chordate.
Plants will grow prostrate along the ground until something comes in their
path. They are commonly found growing up trees, fences, and utility
poles.
Mature leaves are alternately arranged along the stem, glabrous, and heart-shaped.
Like virtually all weeds in the family Polygonaceae, wild buckwheat has ocrea
at each leaf node. The ocrea is a membranous sheath that wraps around
the stem just above each node.
Flowers are inconspicuous, have no petals, and occur in long spikes. This
is an easy way to distinguish
this plant from other vine weeds.
Seed occur in capsules that are 3-sided.
Click here for a web
page that compares this weed to similar looking vine weeds.
Return to the Weed Species Page
Return to the Weed Management Homepage
Email comments to James Altland
