cirsium_lanceolatum
1. [ noun ] (botany) European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States
Synonyms: boar_thistle spear_thistle Cirsium_vulgare bull_thistle
Related terms: plume_thistle
Similar spelling:   Cirsium_rivulare
  Cirsium_eriophorum