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Blooming (flowering) thistle. Soft view and background with Cotton Thistle (Onopordum acanthium).
Thistle flower against a black background
tle (Ptilostemon casabonae) stock photo
Purple flower of a Scottish Thistle.
Silybum marianum herbal remedy. Pink milk thistle flowers, close up.
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.
Milk Thistle Flower
Photo of thistle flowers.
Close-up on a thistle flower
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.
Green grasses grow on a field in Siberia on a hot sunny summer day
close-up of purple thistle in Spain from benidorm
Purple flower in beautiful sunlight as background. Selective focus. Purple flower in vintage style. Nature concept.
Purple Thistle flower
Close up of the Jurinea mollis flower. In Italian it's called cardo del Carso
Close up view of a bee on a thistle flower
When thistle flower is uploaded, it is composed of many thorns and is beautiful.
Carduus argentatus, Silver thistle, from the daisy family - Front shot - Derebucak district, Çamlık Caves National Park
Yellowstone National Park
Purple wildflowers in a nature reserve in Den Bosch (‘s-Hertogenbosch)
A beautiful and showy purple Eryngium leavenworthii surrounded by Coneflower seed heads on a hot and dry late summer afternoon in Benbrook, Texas
Thistle, close-up.
Closeup side view photograph of the Flodman's Thistle (Cirsium flodmanii) in midsummer.  Photograph taken in south-eastern Manitoba.
Field thistle.
Thistle Flowerhead
Close-up of a delicate light purple flower in full bloom with a blurred green background.
A nice blossom of a cardoon on defocused background
Cotton Thistle, Onopordum acanthium, sometimes posited as the Scotch Thistle, against a natural green background with copy space.
The flower of a thistle growing on a summer meadow.
Shot in frisco, Texas
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