Doctrine of signatures: (above) a plant (acanthus) with seed-pods resembling a frog, and (below) the head of a frog. Coloured ink drawing, c. 1923, after G.B. Della Porta. | Wellcome Collection
Acanthus mollis 'Long Spike' - The Plantsman's Preference
Acanthus | Acanthus mollis - The Beth Chatto Gardens
Acanthus Mollis | Big Spinach Plant | Architectural Plants