Définitions
1.NounA plant of species Gutierrezia sarothrae.
2.NounA plant of species Silphium perfoliatum, native to eastern and central North America.
3.NounA plant of species Silphium terebinthinaceum
4.NounA plant of species Trichostema lanceolatum, native to western North America.
5.NounA plant of species Trichostema laxum.