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Mulberryweed (Moraceae) is an erect, branched summer annual, resembling a mulberry seedling, except stems and leaves are hairy (stems of mulberry saplings are not hairy). Leaves are alternate, and roughly triangular in outline with toothed margins. Flowers are in feathery clusters in the leaf axils. Flower clusters are purple when young, fading to dark brown with age. Plants flower from late spring through early fall, then die after frost. Seeds are forcefully expelled at least 4 feet. Seedlings may flower and fruit within 12 days of reaching the 2-leaf growth stage. Seeds germinate from early spring through late fall, resulting in many generations per year. Consequently, although well controlled by certain preemergence herbicides, populations may continue to build in the absence of aggressive sanitation programs. Control the weed around propagation and liner areas to prevent spread. Herbicide efficacy rankings for this species are based on limited experimental data. [TOP]
