Skip to main content

Helianthus strumosus

Family
Asteraceae
Common Name(s)
Rough-leaved sunflower, woodland sunflower
Flowering Time
August
Fruit/Seed Maturation Sign
Heads yellowish orange; seeds are black
Fruit/Seed Collection Dates
Early September
Notes

Seed output modest; vegetative spread high from an elongate, sometimes branched rhizome (Fernald 1950, Barkely 1986, Gleason and Cronquist 1991, Runkel and Bull 2009).

Rough-leaved sunflower (Helianthus strumosus)

Seed Cleaning
Separate seeds from papery seed head
Storage
Dry
Restoration Potential
Undetermined but probably high due to colony formation