condition mean min max Sterile Leaflet 2.3076733333333332 0.0 3.53749 Fertile Leaflet with Sori 0.11559799999999999 0.0 0.346794 Primary Rachis 3.6972606666666668 0.0 10.7489 Petiole 0.6525013333333334 0.0 1.32447 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0