An Illustrated Guide to ARIZONA WEEDS

The University of Arizona Press




NETTLELEAF GOOSEFOOT-Chenopodium murale L.

DESCRIPTION-Coarse bushy annual with a strong unpleasant odor, 1 to 3 feet high, reproducing by seeds. The stems are erect or prostrate, then ascending. The dark green, thick triangular eggshaped leaves are alternate. usually pointed at the tip, with 1 to 8 irregular teeth along each margin. Thc clusters of flowers, covered by a mealy substance, are borne on short branches in the leaf axils, and often are hidden by the dense leaves. The tiny, dull black diskshaped seeds, enclosed by the thin membranous fruit wall, have a definite rim around the edge, and are about 1/18 inch in diameter.

DISTRIBUTION-Introduced from Europe, nettleleaf goosefoot grows in moist soil. It is an abundant winter to early summer weed in southern Arizona, and is a great pest in vegetables, citrus, alfalfa, and flax, roadsides, city streets, and waste places in Coconino, Yavapai, Gila, Maricopa, Graham, Pinal, Yuma, Cochise, Pima, and Santa Cruz counties; 100 to 8,000 feet elevation; flowering more or less throughout the year, but principally from December to June. It serves as a breeding host for the beet leafhopper, which causes curly top. Nettleleaf goosefoot is more troublesome in cultivated lands than common lambsquarters.

Copyright (c) 1972 The Arizona Board of Regents

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