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Other Names: bindweed, field bindweed, creeping jennyScientific Name: Convolvulus arvensis L. and other Convolvulus species
Plant Family: Convolvulaceae
Botanical Description: herbaceousStems: somewhat hairy, twining or spreading on the ground
Leaves: usually heart shaped or arrowhead shaped, somewhat hairy, alternate, may be three lobed, 1.5 - 2 inches long
Roots: extensive, spreading, may reach 20 - 30 feet below soil surface
Flowers: trumpet or funnel shaped, may be white, tinted with pink, blue or purple, borne singly on stalks, sepals are lance-shaped, narrowing and curving toward tips, bloom June - August
Seeds: Seed pods are egg-shaped, partly covered by bristles, and usually contain 4 - 6 seeds. Seeds are about 0.25 inch long, with 2 flat sides and 1 rounded side. Seeds are gray-brown or black when mature, reddish before maturity. Seeds are covered with tiny bumps.
Seedling: Root is deep and rapid-growing. Seed leaves may be roundish or triangular with rounded tips and indented base. Next leaves are alternate, rounder but indented at tips and base. Subsequent leaves are increasingly arrowhead shaped. Leaves are hairless and on a long stalk that is grooved on the upper side, kidney shaped in cross section. Stem twists and twines.
Often a problem in cultivated crops such as corn and soybean, where it can tie plants together before harvest.
Reproduction: most species perennial, some annualPropagation: seed; some species also by root
Dispersal: Often a contaminant in sand, soil, or vine cuttings.
State: Very common throughout Wisconsin.National: Common throughout the continental U.S. with the exceptions of extreme southern Arizona, New Mexico, and Texas, as well as Florida and the south Atlantic coast.
Origin: native of Eurasia
Prefers disturbed soils such as cultivated fields, gardens, and waste places, but very adaptable and highly competitive. Often found in new cranberry plantings and bare patches in established beds.
While scouting a cranberry bed for disease and insect pests, identify weed populations as they arise. Note the specie(s) of weed present as well as the population level relative to field area. Example: 40% morning glory, 20% boneset and joe-pye weed mix.
Davis, L. W. 1993. Weed Seeds of the Great Plains: A Handbook for Identification. Cooperative Extension Service of Kansas State University, University Press of Kansas. Lawrence, Kansas. p. 82.Kummer, A. P. 1951. Weed Seedlings. The University of Chicago Press, Chicago, U.S.A. p. 222-23.
Kummer, L. D., T. G. Dittl, and T. D. Planer. 1993. Wisconsin Cranberry Weeds. Wisconsin Cranberry Board, Wisconsin Rapids, Wisconsin. p. 19.
Lorenzi, H. J. and L. S. Jeffery. 1987. Weeds of the United States and Their Control. Van Nostrand Reinhold Company, New York, New York. p. 236.
University of Illinois at Urbana-Champaign. 1981. Weeds of the North Central States: North Central Regional Research Publication No. 281. College of Agriculture, Agricultural Experiment Station. Bulletin 772. pp. 142-143.
Wilding, J. L., A. G. Barnett, and R. L. Amor. 1986. Crop Weeds. Inkata Press, Melbourne, Australia. pp. 96-97.
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