Bidens tripartita Bigelow (original description)
Cnicus glutinosus Bigelow accepted as Cirsium muticum Michx. (original description)
Erigeron integrifolius Bigelow (original description)
Erigeron strigosus Bigelow (original description)
Eupatorium ovatum Bigelow accepted as Eupatorium rotundifolium var. ovatum (Bigelow) Torr. ex DC. (original description)
Lactuca integrifolia Bigelow accepted as Lactuca canadensis L. (original description)
Lactuca sanguinea Bigelow accepted as Lactuca hirsuta Muhl. ex Nutt. (original description)
Prenanthes alba var. nana Bigelow (original description)
Solidago macrophylla Bigelow (original description)
Solidago virgaurea Bigelow (original description)
Solidago virgaurea var. alpina Bigelow (original description)
Sonchus acuminatus Bigelow (original description)