condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 1.6679033333333333 0.0 5.00371 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 1.9659133333333332 0.0 5.89774 Crozier 0.13398000000000002 0.0 0.40194 Rhizome 0.0 0.0 0.0 Stolon 0.5757206666666667 0.0 0.873115 Stolon with Root 0.0 0.0 0.0