condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.154798 0.0 0.464394 Stolon 0.0 0.0 0.0 Stolon with Root 2.732212666666667 0.0 7.77543