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Lilac flowers of milk thistle and thorn
Purple flower of a Scottish Thistle.
Silybum marianum herbal remedy. Pink milk thistle flowers, close up.
close-up of purple thistle in Spain from benidorm
Blooming (flowering) thistle. Soft view and background with Cotton Thistle (Onopordum acanthium).
Flowering Milk Thistle (Silybum marianum). Also known as Marian's Thistle, St. Mary's Thistle, Holy Thistle, and Blessed Thistle. Historically used as a medicinal herb. An invasive species in many areas.
tle (Ptilostemon casabonae) stock photo
Close up of thistle flower heads prior to blooming
A pink beautiful spear thistle
Photo of thistle flowers.
Purple artichokes flowers vertical image Marche Italy
Purple Thistle flower
close up view of thistle in bloom on sunny summer day
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Summer landscape. Spain, Catalonia, Costa Brava, El Port de la Selva
Bright purple florets emerge from spiny green heads of Common Burdock (Arctium minus), a wild plant with clinging burrs.
Close up Cobweb Thistle (Cirsium occidentale) wildflower, California
The Elk Thistle (Cirsium eatonii) is a thistle native to Jackson Hole in Wyoming. As its name implies, elk feed on this plant. It is also called Everts Thistle after Truman Everts, a member of the 1870 Washburn–Langford–Doane Expedition, who explored the area that later became Yellowstone National Park.  Everts became lost and survived for a month by eating the elk thistle.  This elk thistle in bloom was photographed at Oxbow Bend in Grand Teton National Park near Jackson, Wyoming, USA.
Eryngium campestre is a perennial herb in the family Apiaceae.
Field thistle.
Blessed milk thistle flowers in field, close up. Silybum marianum herbal remedy, Saint Mary's Thistle, Marian Scotch thistle, Mary Thistle, Cardus marianus bloom
Purple Thistle Flowers - Meadow of purple/magenta wildflowers with selective focus on foreground flowers.
Blooming wild artichoke plant in the nature. Cynara cardunculus purple flower cardoon
Purple wildflowers in a nature reserve in Den Bosch (‘s-Hertogenbosch)
The photograph shows a close-up of a dry thistle growing in a field. The thistle has characteristic prickly heads and dry stems.
Cotton Thistle, Onopordum acanthium, sometimes posited as the Scotch Thistle, against a natural green background with copy space.
Close-up on a thistle flower
Cebolino allium schoenoprasum
Flowers of the Milk Thistle close-up outdoors
Milk thistle in shallow depth of field
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