Seed Study - Echinacea angustifolia
Species: Echinacea angustifolia
Seedling Identification: Cotyledons are bean-like and smooth. The first true leaf emerges alone, is long, narrow, moderately to densely hairy and has an entire margin.
Echinacea angustifolia – purple coneflower
Average number of good seeds per gram bulk matter: 55
Average number of good seeds per gram cleaned: 346
Commercial estimates of seeds per gram: 254
Percent seed: 66
Percent live: n.m.
Collection dates: August 23, 25 and 30; September 1, 2, and 23
Collection effort: 107 grams in 4 person hours
Collection notes: Abundant, obvious and easy to collect
Cleaning notes: Cleaning it isn't easy, because seed is fairly persistent to the seed head which has sharp points on it. Bulk seed measurement was off stalks but with a lot of bracts. Clean seed was hard seed only.
Did You Know?
Lewis and Clark, while on their journey up the Missouri River in 1804, noted that this "wild dog of the prairie...appears here in infinite numbers." More...