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Cirsium eriophorum, the woolly thistle, [2] is a herbaceous biennial species of flowering plant in the genus Cirsium of the family Asteraceae. It is widespread across much of Europe. It is a large biennial plant with sharp spines on the tips of the leaves, and long, woolly hairs on much of the foliage.
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 ...
Cirsium altissimum (L.) Spreng. – roadside thistle, tall thistle; Cirsium andersonii Petr. – Anderson's thistle, rose thistle; Cirsium andrewsii Jeps. – Franciscan thistle; Cirsium arisanense Kitam. Cirsium arizonicum (A.Gray) Petr. – Arizona thistle; Cirsium arvense (L.) Scop. – creeping thistle, field thistle Cirsium arvense var ...
Cirsium occidentale, with the common name cobweb thistle or cobwebby thistle, is a North American species of thistle in the family Asteraceae. [3] Description
Cirsium edule, the edible thistle [2] or Indian thistle, [3] is a species of thistle in the genus Cirsium, native to western North America from southeastern Alaska south through British Columbia to Washington and Oregon, and locally inland to Idaho. [4] It is a larval host to the mylitta crescent and the painted lady. [5]
Plants of the genus are known commonly as plumeless thistles. [ 3 ] [ 4 ] They are native to temperate Eurasia and North Africa, [ 1 ] and several are known elsewhere as introduced species . [ 4 ] This genus is noted for its disproportionately high number of noxious weeds compared to other flowering plant genera.
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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).