GARLIC-MUSTARD (Alliaria officinalis), a plant of hedge banks, low woods and waste grounds, called also hedge-garlic, Jack-by-the-hedge and sauce-alone. It is an erect, somewhat branching biennial or perennial herb, 2 ft. to 3 ft. high, of the mustard family (Cruciferae), native to Europe and temperate Asia and naturalized in North America from Quebec and Ontario to Virginia. The long-stalked, coarsely-toothed leaves emit, when crushed, a garlic-like odour. The plant bears white flowers.