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They have spiny foliage and produce blue or white spherical flower heads. They are distributed from central Asia, Mongolia and north-eastern China to the Mediterranean basin, temperate regions of Eurasia, reaching to Indian subcontinent and tropical Africa. [2] [3] Globe thistle is the host plant of weevils Larinus vulpes and Larinus onopordi. [4]
Echinops bannaticus, known as the blue globe-thistle, [2] is a species of flowering plant in the family Asteraceae, native to southeastern Europe. It is an herbaceous perennial thistle, growing to 120 cm (47 in), with prickly foliage and spherical blue flower heads in summer.
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 ...
Eryngium planum, the blue eryngo [1] or flat sea holly, is a species of flowering plant in the family Apiaceae, native to the area that includes central and southeastern Europe and central Asia. It is an herbaceous perennial thistle growing to 50 cm (20 in) with branched silvery-blue stems, and numerous small blue conical flowerheads surrounded ...
The flowers are insect pollinated, and various thistle species are widely known as important food sources for butterflies, as well as bees. Goldfinches love to feed on this abundant thistle ...
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).
Eryngium integrifolium, also known as blueflower eryngo, savanna eryngo, or blue-flowered coyote thistle, [1] is a flowering plant in the family Apiaceae. It is native to the Southeastern United States where it is found it meadows, savannas, and flatwoods often in wet, nutrient-poor conditions. It produces dense heads of blue flowers in late ...
Cicerbita is a genus of flowering plants in the family Asteraceae, native to Asia and Europe. [1] [2] They are known commonly as blue sow thistles. [3] The word Cicerbita is from the Italian, meaning "chickory-like", a comparison to Cichorium, the chicory genus. [4]