WordNet (r) 3.0 (2006):

blue sage
    n 1: sage of western North America to Central America having
         violet-blue flowers; widespread in cultivation [syn: blue
         sage, Salvia reflexa, Salvia lancifolia]
    2: Texas sage having intensely blue flowers [syn: blue sage,
       mealy sage, Salvia farinacea]
    3: blue-flowered sage of dry prairies of the eastern United
       States [syn: blue sage, Salvia azurea]
    4: aromatic shrub of arid regions of western North America
       having hoary leaves [syn: big sagebrush, blue sage,
       Seriphidium tridentatum, Artemisia tridentata]