condition mean min max Sterile Leaflet 4.774570000000001 3.86708 5.68773 Fertile Leaflet with Sori 5.15159 4.01361 6.75551 Primary Rachis 0.0513701 0.0 0.10317 Petiole 0.0 0.0 0.0 Crozier 0.14974866666666667 0.0 0.229687 Rhizome 0.03668 0.0 0.11004 Root 8.662123333333334 2.11627 13.2451