Corylopsis pauciflora, the buttercup witch hazel or winter hazel, is a species of flowering plant in the family Hamamelidaceae, native to Taiwan and Japan.

It produces masses of pale yellow flowers in pendent racemes in early spring, followed by leaves opening bronze and turning to rich green.

It is cultivated in gardens and parks in temperate regions.

[2][3] The Latin specific epithet pauciflora means "with few flowers".

This plant has gained the Royal Horticultural Society's Award of Garden Merit.