Trillium lirioides f. giganteum - orchidroots .

Trillium lirioides f. giganteum (synonym of Trillium grandiflorum)

Trillium lirioides f. giganteum, Farw. 1918 (Kew)

Trillium lirioides f. giganteum is a species in the Trillium genus. This name is a synonym of Trillium grandiflorum
No image available. Please try the accepted species grandiflorum