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Milk thistle flowerhead Cirsium arizonicum, showing arachnoid cobwebbiness on stems and leaves, with ants attending aphids that might be taking advantage of the shelter. Thistle is the common name of a group of flowering plants characterized by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles can also occur ...
Silybum marianum is a species of thistle.It has various common names including milk thistle, [1] blessed milkthistle, [2] Marian thistle, Mary thistle, Saint Mary's thistle, Mediterranean milk thistle, variegated thistle and Scotch thistle (not to be confused with Onopordum acanthium or Cirsium vulgare).
The cardoon (Cynara cardunculus / ˈ s ɪ n ər ə k ɑːr ˈ d ʌ n k j ʊ l ə s /), [2] [3] also called the artichoke thistle, is a thistle in the family Asteraceae. It is a naturally occurring species that also has many cultivated forms , including the globe artichoke .
Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains).
Most of them are commonly known as thistles; [6] four of the best known genera are Carduus, [7] Cynara (containing the widely eaten artichoke), Cirsium, [7] and Onopordum. [7] They are annual, biennial, or perennial herbs. Many species are thorny on leaves, stems, or involucre, and some have laticifers or resin conduits.
Sonchus oleraceus is a species of flowering plant in the tribe Cichorieae of the family Asteraceae, native to Europe and Western Asia. It has many common names including common sowthistle, [2] sow thistle, [3] smooth sow thistle, annual sow thistle,puha, [4] hare's colwort, hare's thistle, milky tassel, milk thistle, [5] and soft thistle.
Separate cypselae. Onopordum acanthium (cotton thistle, Scotch (or Scottish) thistle) is a flowering plant in the family Asteraceae.It is native to Europe and Western Asia from the Iberian Peninsula east to Kazakhstan, and north to central Scandinavia, and widely naturalised elsewhere, [1] [2] [3] with especially large populations present in the United States and Australia.
Centaurea solstitialis, the yellow star-thistle, is a species of thorny plant in the genus Centaurea, which is part of the family Asteraceae. A winter annual, it is native to the Mediterranean Basin region and invasive in many other places. It is also known as golden starthistle, yellow cockspur and St. Barnaby's thistle (or Barnaby thistle). [1]