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Wildflowers of Tucson, Arizona |
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| Scientific
Name: Xanthium
strumarium Common Name: Rough Cockleburr, Common Cocklebur Flower Color: Inconspicuous, greenish Plant Type: Herb, Annual Height: To 5 feet (1.5 m) tall Date Observed: October 30, 2004, August 20, 2004 Notes: Poisonous seeds and cotyledons. The male flowers are at the stem tips. The female flowers are in the leaf axils and are followed by spiny, 1.5 inch (3.8 cm) long burs. The dry burs adhere to clothing or fur. The leaves are heart-shaped and coarsely toothed. |
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