From Botanical Knowledge
Gnaphalium exilifolium, a New World native, differs from the Old World G. uliginosum
chiefly in its linear, slightly longer cauline leaves and bracts and in its spiciform arrangement of heads. Pistillate corollas of G. exilifolium are sometimes red-tipped. Cypselae of both taxa are variably smooth to papillate; local populations apparently are consistent in this feature; the variation is otherwise geographically inconsistent.
Facts about "Gnaphalium exilifolium"