The Gessner garden shows 50 medicinal plants (herbs and shrubs), used by 16th century's healers, each with a citation of a healer from that period, such as Cynara cardunculus, Potentilla erecta, Linum usitatissimum, Paeonia officinalis, Silybum marianum, Juniperus communis, Fragaria vesca, Artemisia absinthium and more.
Flax, the golden colored seeds produced by some forms of the widely cultivated blue-flowered flax species, Linum usitatissimum