• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Blue Flax

Blue Flax - Linum perenne
Blue Flax, Lewis' Flax - Linum perenne, L. lewisii
NPS Photo by Jim Pisarowicz
Blue Flax is often considered a subspecies of the Eurasian L. perenne which is very similar. The plant is named after Meriwether Lewis.

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