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A perennial field thistle considered to be invasive
Close up of a purple allium flower.
Purple flower of thistle plant with green bud isolated on a white background. Cirsium vulgare.
A blue thistle wildflower against a plain white background.
Bee colecting polen from a Greater burdock Arctium lappa flower closeup.
Heather in bloom in the moorland hills of Scotland's Highlands.  Please note shallow depth of field.
A close-up shot of a bull thistle, showcasing its delicate petals against a softly blurred background.
thistle butterfly
Astragalus sp. - inflorescence with purple flowers on a dark background, southern Ukraine
Phacelia tanacetifolia blue tansy
photo of purple wildflowers in Manitoba
Purple and white thistle like flower.
Floral blue-violet background.  Pink  thorny thistle flower. A pink flower on a blue background. Closeup.  Nature. .
Milk thistle (Silybum marianum) black background
Pink flowering thistle Cardus marianus or Saint Mary's thistle (Silybum marianum)on background of blurred greens. Milk thistle is valuable plant used for medicinal purposes. Selective focus close-up
Silybum marianum in garden
Scotch thistle also know as cotton thistle or heraldic thistle.
Borage (Borago officinalis)
meadow herbs ivan-tea, sweet clover and thistle growing in the field
A Scottish Thistle in bloom and isolated on a white background.
Creeping thistles in a summer meadow
Symphytum officinale is a perennial flowering plant of the genus Symphytum in the family Boraginaceae. Along with thirty four other species of Symphytum, it is known as comfrey. To differentiate it from other members of the genus Symphytum, this species is known as common comfrey or true comfrey.
A bee flies near a beautiful blue flower. CREATIVE. A flower with blue petals in a meadow. Insects are on the flower. The wind blows a flower growing in a clearing.
Beautiful growing flower root burdock thistle on background meadow, photo consisting from growing flower root burdock thistle to grass meadow, growing flower root burdock thistle at meadow countryside
Cornflower in an English country garden.
Seeds of a milk thistle with flowers (Silybum marianum, Scotch Thistle, Marian thistle ) Close-up on white background.
The Beauty of Field Thistle in the European Alps at Summer
closeup of marsh thistle flower blooming in spring
Wild flowers in Spring, Worcester, Pennsylvania, USA
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