plural of European swamp thistle

(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)

The thistle Cirsium arvense.

Alternative spelling of starthistle

Alternative spelling of starthistle

Any of various cacti of the genus Echinocactus.

Any of several species of genus Salsola and its close relatives, prickly shrublike annuals, especially Salsola tragus (syn. Kali tragus, which is the best-known kind of tumbleweed in the US.

The teasel (Dipsacus fullonum) whose burs were once used by fullers in dressing cloth.