beggar ticks

also beggar's ticks

plural noun (used with a sing. or pl. verb)
  1. a. Any of various weeds of the genus Bidens in the composite family, having heads of usually yellow flowers. Also called Spanish needles, sticktight.
    b. The small barbed achenes of any of these plants, clinging readily to clothing and animal fur.
  2. Any of certain other plants or their clinging fruits.
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