Photographs of leaves from seven plant species including <i>S. quitoense, S. betaceum, P. peruviana, R. fruticosus, P. ligularis, P. vulgaris </i>and <i>P. edulis</i>.

Photographs of leaves of seven plant species that were taken at different physiological stages of cultivation. The photographs were taken with a ruler with known measurements to subsequently calculate the leaf area with image analysis programs.</p