[Medicinal plants and symbols in the medieval mystic altarpiece].

The medieval mystic altarpiece towers above the altar table. It is linked to the evocation of a religious mystery beyond our faculty of reasoning. Symbolism of an enclosed garden evokes the image of the Heavenly Garden isolated by a wall from the rest of earthly world.

[The plants in the Issenheim's altarpiece].

On the decorated panels an altar, the so-called "retable d'Issenheim", in Colmar, several painted plants can be easily identified.