Helleborus Gueldenst. genus synonym

Anticlea Kunth genus accepted

Chrysosperma Kuntze genus synonym

Ophiostachys Redouté genus synonym

Helonias L. genus accepted

Oceanorus Small, 1903 genus doubtful

Xerophyllium Michx. genus synonym

Nietneria Klotzsch & M.R.Schomb. genus doubtful

Zygadenus S.F.L.Endlicher, 1836 genus synonym

Zygadenus Michx. genus doubtful

Chrosperma Raf. genus synonym

Alopicarpus Neck. genus synonym

Helionopsis Franch. & Sav. genus doubtful

Heleniopsis Baker, 1874 genus doubtful

Euthyra Salisb. genus synonym

Monadenus Salisb. genus synonym

Leimanthemum Ritgen genus doubtful

Cartalinia Szov. ex Kunth genus synonym

Diclinothrys Endl., 1840 genus doubtful

Acedilanthus Benth. & Hook.f., 1883 genus doubtful

Chitonia Salisb. genus synonym

Huxhamia Garden genus synonym

Amianthum Raf., 1838 genus doubtful

Amianthemum Steud., 1840 genus doubtful

Amiantanthus Kunth, 1843 genus doubtful

Abalum Adans., 1763 genus doubtful

Melanthium J.Clayton ex L. genus accepted

Amianthium A.Gray genus accepted

Leimanthium Willd. genus synonym

Zigadenus Michx. genus accepted

Kinugasa Tatew. & Sutô genus synonym

Hexonix Raf. genus synonym

Phyllantherum Raf. genus synonym

Gomphostylis Raf. genus synonym

Dasurus Salisb. genus synonym

Oceanoros Small genus synonym

Pseudotrillium S.B.Farmer genus accepted

Chamaelirium Willd. genus accepted

Tracyanthus Small genus synonym

Endocles Salisb. genus synonym

Crosperma Raf. genus synonym

Anepsa Raf. genus synonym

Esdra Salisb. genus synonym

Delostylis Raf. genus synonym

Trillidium Kunth genus synonym

Evonyxis Raf. genus synonym

Acelidanthus Trautv. & C.A.Mey. genus synonym

Diclinotrys Raf. genus synonym

Asagraea Lindl. genus synonym

Kozola Raf. genus synonym

Skoinolon Raf. genus synonym

Chionographis Maxim. genus synonym

Sugerokia Miq. genus synonym

Xerophyllum Michx. genus accepted

Stenanthium (A.Gray) Kunth genus accepted

Toxicoscordion Rydb. genus accepted

Abalon Adans. genus synonym

Paris L. genus accepted

Daiswa Raf. genus synonym

Schoenocaulon A.Gray genus accepted

Ypsilandra Franch. genus synonym

Sabadilla Brandt & Ratzeb. genus synonym

Veratrum L. genus accepted

Demidovia Hoffm. genus synonym

Stenanthella Rydb. genus synonym

Trillium L. genus accepted

Heloniopsis A.Gray genus synonym

Tofieldia genus doubtful

Siraitos Raf. genus synonym

Narthecium Juss., 1789 genus doubtful