grape hyacinth

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

• noun Any of various plants of the genus Muscari, native to Eurasia and having narrow leaves and dense terminal racemes of rounded, usually blue flowers.

from The Century Dictionary.

• noun See hyacinth.

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

• noun Any of the species of three genera in the Hyacinthinae subtribe that produce racemes of small blue flowers, Muscari, Pseudomuscari, and Leopoldia.

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

• noun any of various early flowering spring hyacinths native to Eurasia having dense spikes of rounded blue flowers resembling bunches of small grapes