$modus 0:
$modus 1:
Trillium petiolatum
Trillium petiolatum Pursh [Accepted]
Liliaceae Trillioideae Parideae
2 1033511 Trillium petiolatum Pursh
W.J. Hooker, Fl. Bor.-Amer. (Hooker), vol. 2 : t. 192 (1840) [n.a.]