London pride

Century Dictionary and Cyclopedia

1. n. A British plant, Saxifraga umbrosa, common in cottage-gardens. Also called none-so-pretty and St. Patrick's cabbage.
2. n. The sweet-william, Dianthus barbatus. Also called London-tuft.

Wiktionary

1. n. A perennial saxifragaceous plant, (a hybrid of various Saxifraga species), that has a basal rosette of leaves and pinkish-white flowers

GNU Webster's 1913

1. n. (Bot.) A name anciently given to the Sweet William.