condition mean min max Sterile Leaflet 0.1785889333333333 0.0 0.477689 Mature Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.11217196666666666 0.0 0.282663 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Stolon 2.33534 0.0 4.28492 Stolon with Root 0.06720733333333333 0.0 0.201622