Classic texts: USDisp 1918.
Salvia patens
Salvia patens Cav.
Engl.: gentian sage, blue-flowered sage.
Deu.: Mexikanischer Salbei.
Suom.: sinisalvia.
Sven.: blåsalvia, safirsalvia.
Sage types.
Henriette's herbal blog: There are four, no five types of sage. Six, you say? Seven?