Any of many herbs, of the genus Ranunculus, having yellow flowers; the crowfoot. / Any flower of the genus Narcissus; a daffodil. / Affectionate or ironic term of address.

covered in buttercups

plural of buttercup

A perennial weed, Ranunculus bulbosus, that has attractive yellow flowers

A perennial flowering plant, Ranunculus repens.

plural of bulbous buttercup

plural of creeping buttercup

An arctic-alpine flowering plant, Ranunculus glacialis

plural of Bermuda buttercup

Oxalis pes-caprae, a tristylous plant with yellow flowers.