thimbleweed

2 definitions found

thimbleweed - Collaborative International Dictionary of English v.0.48 :

  Thimbleweed \Thim"ble*weed`\, n. (Bot.)
     Any plant of the composite genus Rudbeckia, coarse herbs
     somewhat resembling the sunflower; -- so called from their
     conical receptacles.
     [1913 Webster]

thimbleweed - WordNet (r) 2.1 (2005) :

  thimbleweed
      n 1: a common North American anemone with cylindrical fruit
           clusters resembling thimbles [syn: thimbleweed, Anemone cylindrica
           ]