condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 4.567933333333333 0.0 13.7038 Fertile Leaflet with Sori 0.6553553333333333 0.0 1.03193 Petiole 0.13011433333333333 0.0 0.390343 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