• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Seed Study - Verbena bracteata

Verbena bracteata - Prostrate Vervain

Verbena bracteata - Prostrate Vervain

NPS Photo

Species: Verbena bracteata
Common name: prostrate vervain

Seedling identification: Cotyledons are fairly small, ovate and purple tinged. Primary leaves are lobed with prominent veins and are purple tinged near the stem.

 

Verbena bracteata – prostrate vervain
Average number of good seeds per gram bulk matter: n.m.
Average number of good seeds per gram cleaned: 1803
Commercial estimates of seeds per gram: n.a.
Percent seed: 74
Percent live: 74
Collection dates: August 30 and September 1.
Collection effort: >4 grams in 3 person hours
Collection notes: Easy to collect in large amounts.
Cleaning notes: Clean seed measurement was obtained using pure seed.

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