condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.193451 0.0 0.580353 Crozier 0.0 0.0 0.0 Rhizome 1.5079566666666668 0.0 3.36561 Root 6.490443666666666 0.265471 17.2627