condition mean min max Sterile Leaflet 0.278468 0.0 0.556478 Fertile Leaflet with Sori 4.58578 3.26226 5.6137 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.3166066666666667 0.211401 0.501828 Petiole 0.0 0.0 0.0 Crozier 0.026664999999999998 0.0 0.079995 Root 0.32388066666666665 0.0 0.570124