• 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.

Did You Know?

Prairie Dog Barking

Lewis and Clark, while on their journey up the Missouri River in 1804, noted that this "wild dog of the prairie...appears here in infinite numbers." More...