• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Seed Study - Dalea purpurea

Species: Dalea purpurea
Common name: purple prairie clover


Dalea purpurea – purple prairie clover
Average number of good seeds per gram bulk matter: 22 (10)
Average number of good seeds per gram cleaned: n.m.
Commercial estimates of seeds per gram: 639
Percent seed: 95-100
Percent live: n.m
Collection dates: August 25, 26 and 30
Collection effort: 23 grams in 6 person hours
Collection notes: Easy to collect once plants are found, but collect more than expected because of insect damage. Also beware of confusing this species with Dalea candida because they often grow together.
Cleaning notes: Bulk measurement included calyx and bad 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.