condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 1.9441300000000001 0.0 5.83239 Rhizome 0.6808256666666667 0.0 1.38096 Root 0.0 0.0 0.0