Gray-green thistle, Cirsium cymosum var. canovirens, Cirsium canovirens in flower, Sierra Nevada.

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Photo credit: © Bob Gibbons / Alamy / Afripics
License: Licensed
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Keywords: america, american, blooms, blossom, ca, california, canovirens, cirsium, cymosum, flora, flower, flowering, flowers, gray-green, natural, nature, nevada, north, plant, prickle, prickly, sierra, spine, spines, spiny, thistle, usa, var., wildflower, wildflowers