Silphium perfoliatum
Silphium perfoliatum L.
Engl.: cup plant, Indian cup plant, ragged cup.
Suom.: leveäkompassikukka.
The Medical Flora of Kansas: Sedum - Stylosanthes.
Classic texts: Journals: TNEMA 1882-1883.
Classic texts: Scudder 1870.
Classic texts: Journals: TNEMA 1882-1883.