baby's tears

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

• noun plural An evergreen, mat-forming perennial (Soleirolia soleirolii) native to the western Mediterranean region, grown as an ornamental for its numerous tiny, roundish leaves.

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

• noun prostrate or creeping Corsican herb with moss-like small round short-stemmed leaves