Canada's Plant Hardiness Site

Synonymy

Asteraceae family
Ambrosia psilostachya DC.
En: perennial ragweed, western ragweed, naked-spike ambrosia, Cuman ragweed;
Fr: herbe à poux vivac
    • [=Ambrosia californica Rydb.]
    • [=Ambrosia coronopifolia Torr. & A.Gray]
    • [=Ambrosia lindheimeriana Scheele]
    • [=Ambrosia psilostachya DC. var. californica (Rydb.) S.F.Blake]
    • [=Ambrosia psilostachya DC. var. coronopifolia (Torr. & A.Gray) Farw.]
    • [=Ambrosia psilostachya DC. var. lindheimeriana (Scheele) Blank.]
    • [=Ambrosia rugelii Rydb.]