Toxicological  trivia from October 23, 2009: Salvia is the largest genus of plants in the mint family, Lamiaceae, with approximately 900 species of shrubs, herbaceous perennials, and annuals.It is one of three genera commonly referred to as sage. When used without modifiers, sage generally refers to
a) S. splendens Kerk-Gawl.
b) S. officinalis L.
c) S. hispanica L.

Answer b. Read more in RETEL, No. 16, 29-33  Salvia divinorum Epl. & Játiva-M. -Lamiaceae "" substitute for "marijuana"?.Also in Wikipedia