• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Seed Study - Erysimum asperum

Erysimum asperum - Western Wallflower

Erysimum asperum - Western Wallflower

NPS Photo

Species: Erysimum asperum
Common name: western wallflower

Seedling Identification: Spatulate, petioled, sand paper textured leaves that have hairs that lie pointing to the distal end of the leaves.

 

Erysimum asperum – western wallflower
Average number of good seeds per gram bulk matter: n.m.
Average number of good seeds per gram cleaned: 3005
Commercial estimates of seeds per gram: n.a.
Percent seed: n.m.
Percent live: n.m.
Collection dates: July 14 and 15
Collection effort: >6 grams in 4 person hours
Collection notes: Easy to collect large amounts from a few plants if found at the correct time, but seed dispersed soon after maturation. Watch carefully!
Cleaning notes: Cleaned seed measurement included seed only. All seed broke when tested with fingernail so counted all but the empty looking ones.

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