Compositae source details
Proceedings of the American Academy of Arts and Sciences 18:
326517
Publication
Date
action
by
Helenium tenuifolium var. badium A.Gray ex S.Watson accepted as Helenium amarum var. badium (A.Gray ex A.Gray) Waterf. (original description)
Porophyllum filifolium A.Gray accepted as Porophyllum filiforme Rydb. (original description)
Porophyllum filifolium A.Gray accepted as Porophyllum filiforme Rydb. (original description)
