Amianthium A.Gray genus accepted

Anticlea Kunth genus accepted

Chamaelirium Willd. genus accepted

Helonias L. genus accepted

Melanthium J.Clayton ex L. genus accepted

Paris L. genus accepted

Pseudotrillium S.B.Farmer genus accepted

Schoenocaulon A.Gray genus accepted

Stenanthium (A.Gray) Kunth genus accepted

Toxicoscordion Rydb. genus accepted

Trillium L. genus accepted

Veratrum L. genus accepted

Xerophyllum Michx. genus accepted

Zigadenus Michx. genus accepted

Xxxx ovatum var. stenosepalum R.R.Gates variety provisionally accepted