Silphium trifoliatum (Native)
Description
Silphium trifoliatum , Inflorescence past anthesis from below, phyllaries. Family Asteraceae, Subclass Asteridae. Origin: Native.Collections
Citation
Hugh D. Wilson (2011). Silphium trifoliatum (Native). Available electronically from https : / /hdl .handle .net /1969 .1 /101342.