Native Plants of the Great Lakes
North Branch Restoration Project:
Native Plant and Seed Collection
Silphium Integrifolium / Family: Asteraceae
Rosin Weed, Swink/Wilhelm # 5
FLOWERING: July - September
SEED TIMING: Mid-September to mid-October
HABITAT: Prairies
DIAGNOSTIC FEATURES: 2 - 6 feet. Sunflower like flowers.
Large, coarse plants with rough, stalkless, paired leaves, with or
without teeth.
TO PICK: Sunflower-like seeds form in rays only. Turn dry
and brown when ripe. Best to pick at earlier stage since it is eaten
perhaps by deer. Pick entire head. |
