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.

wild buckwheat Polygonum convolvulus

Cotyledons are linear while first true leaves are chordate.

wild buckwheat Polygonum convolvulus

Plants will grow prostrate along the ground until something comes in their path.  They are commonly found growing up trees, fences, and utility poles.

wild buckwheat



wild buckwheat

Mature leaves are alternately arranged along the stem, glabrous, and heart-shaped.

wild buckwheat

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.

wild buckwheat

Flowers are inconspicuous, have no petals, and occur in long spikes.  This is an easy way to distinguish this plant from other vine weeds.

wild buckwheat Polygonum convolvulus

Seed occur in capsules that are 3-sided.

wild buckwheat Polygonum convolvulus


Click here for a web page that compares this weed to similar looking vine weeds.



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