• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Seed Study - Verbena stricta

Verbena stricta - Hoary Vervain

Verbena stricta - Hoary Vervain

Species: Verbena stricta
Common name: hoary vervain

Seedling identification: Cotyledons are purplish, very small and narrow with rounded tips. First leaves are purplish, heavily veined and pubescent.

 

Verbena stricta – hoary vervain
Average number of good seeds per gram bulk matter: n.m.
Average number of good seeds per gram cleaned: 1036
Commercial estimates of seeds per gram: 1096
Percent seed: n.m.
Percent live: n.m.
Collection dates: September 27 and October 11.
Collection effort: >10.4 grams in 2 person hours
Collection notes: Easy to collect in large amounts.
Cleaning notes: Clean seed measurement was for pure seed.

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.