condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 2.54593 0.0 7.63779 Fertile Leaflet with Sori 0.17535566666666666 0.0 0.275526 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Stolon 0.0 0.0 0.0 Stolon with Root 0.0 0.0 0.0