Pterocaulon
noun
Ptero·cau·lon
ˌterəˈkȯlən,
-ˌlän
: a small genus of vigorous woolly or downy perennial herbs (family Compositae) with alternate decurrent leaves and flower heads in dense terminal clusters see black root, golden cudweed
Word History
Etymology
New Latin, from pter- + -caulon (from Greek kaulos stem, stalk