blue sage
Noun
Meaning
aromatic shrub of arid regions of western North America having hoary leaves
blue-flowered sage of dry prairies of the eastern United States
Texas sage having intensely blue flowers
sage of western North America to Central America having violet-blue flowers; widespread in cultivation
Source: WordNetSynonyms
salvia
big sagebrush
Artemisia tridentata
Seriphidium tridentatum
Salvia lancifolia
Salvia reflexa
mealy sage
Salvia farinacea
Salvia azurea