• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Blue Vervain

Blue Vervain, Swamp Vervain - Verbena hastata
Blue Vervain, Blue Verbena, Swamp Vervain - Verbena hastata
NPS Photo by Jim Pisarowicz
 
Blue Vervain prefers to grow in open moist areas.

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