condition mean min max Sterile Leaflet 0.21517666666666668 0.0 0.64553 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.29776933333333333 0.0 0.893308 Secondary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 1.78081 0.0 3.64448 Root 0.837792 0.0 1.91003