Noun blue sage has 4 senses
- blue sage, Salvia reflexa, Salvia lancifolia - sage of western North America to Central America having violet-blue flowers; widespread in cultivation
--1 is a kind of sage, salvia
- blue sage, mealy sage, Salvia farinacea - Texas sage having intensely blue flowers
--2 is a kind of sage, salvia
- blue sage, Salvia azurea - blue-flowered sage of dry prairies of the eastern United States
--3 is a kind of sage, salvia
- big sagebrush, blue sage, Seriphidium tridentatum, Artemisia tridentata - aromatic shrub of arid regions of western North America having hoary leaves
--4 is a kind of sagebrush, sage brush
--4 is a member of Seriphidium, genus Seriphidium
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