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New December 2003

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Contents

• Control of vine weeds
• Taxonomic key
• Balloonvine (Cardiospermum halicacabum)
• Burcucumber (Sicyos angulatus)
• Dodder (Cuscuta spp.)
• Field bindweed (Convolvulus arvensis)
• Honeyvine milkweed (Ampelamus albidus)
• Japanese honeysuckle (Lonicera japonica)
• Japanese hops (Humulus japonicus)
• Japanese knotweed (Polygonum cuspidatum)
• Kudzu (Pueraria lobata)
• Morningglories, annual (Ipomoea spp.)
• Morningglory, bigroot (Ipomoea pandurata)
• Poison ivy (Toxicodendron radicans)
• Redvine (Brunnichia ovata)
• Trumpetcreeper (Campsis radicans)
• Virginia creeper (Parthenocissus quinquefolia)
• Wild buckwheat (Polygonum convolvulus)

Related publications

• G4875, Control of Perennial Broadleaf Weeds in Missouri Field Crops
• G4880, Poison Ivy: Identification and Control
• G6750, Home Lawn Weed Control
• IPM1007, Practical Weed Science for the Field Scout: Corn and Soybeans
• IPM1014, Noxious Weeds of Missouri
• IPM1019, Caterpillars in Your Yard and Garden
• IPM1023, Missouri Weed Seeds
• NCR33, Vine Weeds of the North Central States

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Vine Weeds of Missouri

Wild buckwheat (Polygonum convolvulus)

Growth habit

• Summer annual

Other names

• Black bindweed

Origin

• Europe

Control classification

• Moderately easy

Note

• Before using any any herbicide, read and follow directions on the label accompanying that product. Reference to specific trade names does not imply endorsement by the University of Missouri; discrimination is not intended against similar products.

Wild buckwheat resembles morningglories in its heart-shaped, alternate leaves. A member of the Polygonaceae (smartweed) family, wild buckwheat has ocreas at the base of leaf petioles while morningglories do not.

The plant may also be confused with bindweeds because of the basal lobes on the leaves. However, wild buckwheat's lobes point inward while those of bindweeds are directed outward. Wild buckwheat lacks hairs on its stems and leaves. Because of their greenish white color, flowers are not very noticeable.

Scattered throughout Missouri, wild buckwheat is a weed of landscapes and agronomic crops.

See IPM1007 wild buckwheat

IPM1021, new December 2003

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