condition mean min max Sterile Leaflet 3.1097966666666665 0.0 7.77842 Fertile Leaflet with Sori 0.310436 0.0 0.931308 Primary Rachis 0.7960836666666667 0.0 1.91423 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0