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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 spikes on the margins, mostly in the family Asteraceae. Prickles can also occur all ...
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).
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).
Cirsium vulgare (spear thistle) is listed in the United States (where as a non-native invasive species it has been renamed "bull thistle") as a noxious weed in nine states. [6] Some species in particular are cultivated in gardens and wildflower plantings for their aesthetic value and/or to support pollinators such as bees and butterflies.
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.
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 ...
The Cardueae are a tribe of flowering plants in the daisy family and the subfamily Carduoideae. [5] 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.
Silybum (milk thistle) is a genus of two species of thistles in the family Asteraceae. [ 1 ] [ 3 ] The plants are native to the Mediterranean regions of Europe , [ 4 ] North Africa , and the Middle East .