Uvularia grandiflora, the large-flowered bellwort or merrybells, is a species of flowering plant in the family Colchicaceae, native to eastern and central North America.

It blooms in mid- to late spring, producing large yellow, solitary or paired, bell-shaped, pendent flowers.

The native range of Uvularia grandiflora extends from the Appalachians west to the Dakotas, Kansas and Oklahoma, from Louisiana and Georgia in the South to Manitoba, Ontario and Quebec in Canada.

[5] Uvularia grandiflora is a woodland species found in open shade in rich moist woods with calcareous to neutral soils.

[11] In cultivation in the UK Uvularia grandiflora has gained the Royal Horticultural Society's Award of Garden Merit.