• 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?

fire on the prairie

Fire is an important factor in protecting the prairie. Historically, fires burned across the prairie every 4 to 7 years. Fires burn the small trees that would otherwise march across the prairie and turn the grasslands to forest.