Melanthiaceae

Amianthium muscitoxicum
Anticlea elegans
Anticlea occidentalis
Chamaelirium luteum
Helonias bullata
Heloniopsis orientalis var. breviscapa
Melanthium virginicum
Paris fargesii var. petiolata
Paris incompleta
Paris polyphylla
Paris polyphylla var. chinensis
Paris polyphylla var. yunnanensis
Paris quadrifolia
Paris tetraphylla
Paris verticillata
Schoenocaulon ghiesbreghtii
Trillium apetalon
Trillium catesbaei
Trillium cernuum
Trillium cuneatum
Trillium erectum
Trillium grandiflorum
Trillium ovatum
Trillium rugellii
Trillium tschonoskii
Trillium undulatum
Trillium vaseyi
Veratrum album
Veratrum grandiflorum
Veratrum nigrum
Veratrum viride
Xerophyllum tenax
Zigadenus paniculatus
Zigadenus venenosus