ground ivy

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

• noun A creeping or trailing European aromatic plant (Glechoma hederacea) in the mint family, widely naturalized in North America and having rounded scalloped leaves and small purplish flowers.

from The Century Dictionary.

• noun A European plant, Nepeta Glechoma (Glechoma hederacea), natural order Labiatœ, abundant in Great Britain, and naturalized in the United States.

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

• noun Glechoma hederacea, an aromatic, perennial, evergreen creeper of the mint family Lamiaceae.

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

• noun trailing European aromatic plant of the mint family having rounded leaves and small purplish flowers often grown in hanging baskets; naturalized in North America; sometimes placed in genus Nepeta