lily of the valley

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A widely cultivated ornamental plant (Convallaria majalis) having one-sided racemes of fragrant, bell-shaped white flowers.

from The Century Dictionary.

• noun See Convallaria.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A flowering plant, Convallaria majalis, with richly fragrant pendant bells.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun low-growing perennial plant having usually two large oblong lanceolate leaves and a raceme of small fragrant nodding bell-shaped flowers followed by scarlet berries