Wild buckwheat

August 28, 2015

Polygonum convolvulus L.

Life cycle

Twining summer annual vine. 

wild buckwheat plant
Wild buckwheat plant. 


Cotyledons are oblong-oval to linear. Leaves are alternate, hairless and heart- to triangle-shaped with a pointed tip and smooth margins.

wild buckwheat seedling wild buckwheat leaf
Wild buckwheat seedling (left) and leaf (right).


Twining, herbaceous, smooth vines branch at the base and are less than 3 feet long. A membranous sheath (ocrea) surrounds the stem at the base of each petiole. 

Flowers and fruit

Flowers are inconspicuous and green to white or pink. The seed is enclosed in a single-seeded, dull black, three-sided fruit.

wild buckwheat fruit wild buckwheat flowers
Fruit of wild buckwheat (left). Wild buckwheat flowers (right).



Similar weeds

Mile-a-minute (P. perfoliatum L.) Differs by having downward-pointing prickles on the stems, petioles and leaf veins.

Tartary buckwheat [Fagopyrum tataricum (L.) Gaertn.] Differs by having a more erect habit, arrow-shaped leaves and a grooved, hollow stem. 

Print a PDF of this page: Wild buckwheat

Back to identifying Christmas tree weeds.

Tags: integrated pest management

Other Documents in this Series

You Might Also Be Interested In

Accessibility Questions:

For questions about accessibility and/or if you need additional accommodations for a specific document, please send an email to ANR Communications & Marketing at anrcommunications@anr.msu.edu.