• 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?

Stemless Hymenoxys

The scientific name for the Stemless Hymenoxys is Hymemoxys acaulis. Acaulis means "stemless" and referes to the leafless stalks which bear the flower heads. More...