Seed Study - Rosa sp.
Species: Rosa sp.
Seedling identification: Cotyledons are ovate with a rounded tip, yellowing before dropping. First true leaves are trifoliate, rounded, toothed and dull green.
Rosa arkansana – prairie wild rose
Average number of good seeds per gram bulk matter: n.m.
Average number of good seeds per gram cleaned: 69
Commercial estimates of seeds per gram: 88
Percent seed: n.m.
Percent live: 64
Collection dates: September 20
Collection effort: 39 grams in 4 person hours
Collection notes: Relatively easy to collect. Each rose hip holds a lot of seed.
Cleaning notes: Clean seed measurement was after wet fruits (soaked over night) were mashed to separate pulp from seed, air dried, then winnowed or dried pulp picked out.
Did You Know?
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.