thistle

1. Any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves (synset 111964665)
   is a type of: weed - any plant that crowds out cultivated plants
   subtypes:

   • carduus crispus, welted thistle - European biennial introduced in North America having flower heads in crowded clusters at ends of branches
   • carduus nutans, musk thistle, nodding thistle - Eurasian perennial naturalized in eastern North America having very spiny white cottony foliage and nodding musky crimson flower heads; valuable source of nectar
   • carline thistle - a thistle of the genus Carlina
   • plume thistle, plumed thistle - any of numerous biennial to perennial herbs with handsome purple or yellow or occasionally white flower heads
   • cirsium discolor, field thistle - stout North American thistle with purplish-pink flower heads
   • cirsium helenioides, cirsium heterophylum, melancholy thistle - perennial stoloniferous thistle of northern Europe with lanceolate basal leaves and usually solitary heads of reddish-purple flowers
   • blessed thistle, cnicus benedictus, sweet sultan - annual of Mediterranean to Portugal having hairy stems and minutely spiny-toothed leaves and large heads of yellow flowers
   • cotton thistle, onopordon acanthium, onopordum acanthium, scotch thistle, woolly thistle - biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
   • golden thistle - any of several spiny Mediterranean herbs of the genus Scolymus having yellow flower heads
   belongs to: aster family, asteraceae, compositae, family asteraceae, family compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia

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