Any of several perennial composite plants, especially of genera Cirsium, Carduus, Cynara, or Onopordum, having prickly leaves and showy flower heads with prickly bracts.

plural of thistle

plural of Thistle

A surname.

(chemistry) An item of glass laboratory equipment like a funnel consisting of a long, fine tube and a bulbous reservoir at the top. Used for introducing liquids, with care, into a solution.

A North American herb, Salvia carduacea, the seeds of which were once a staple food similar to chia

(botany) Synonym of tall thistle (Carduus altissimus, a.k.a. Cirsium altissimus)

plural of way thistle

plural of wood-thistle

The thistle Cirsium arvense.