Synonyms
Trifolium subcaulescens A.Gray
Trifolium plummerae S.Watson
Trifolium nemorale Greene
Trifolium gymnocarpon subsp. plummerae (S.Watson) J.M.Gillett
Trifolium plummeri Lemmon ex Lojac.
Trifolium gymnocarpon var. plummerae (S.Watson) J.S.Martin
Trifolium gymnocarpon var. subcaulescens (A.Gray) A.Nelson
Trifolium gymnocarpon f. plummerae (S.Watson) McDermott