1. (noun) any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves

• aster family
• asteraceae
• compositae
• family asteraceae
• family compositae

1. (noun) any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves

• blessed thistle
• cnicus benedictus
• sweet sultan
• carduus crispus
• welted thistle
• carduus nutans
• musk thistle
• nodding thistle
• carline thistle
• cirsium discolor
• field thistle
• cirsium helenioides
• cirsium heterophylum
• melancholy thistle
• cotton thistle
• onopordon acanthium
• onopordum acanthium
• scotch thistle
• woolly thistle
• golden thistle
• plume thistle
• plumed thistle

1. (noun) any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves

• weed