condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.016916366666666665 0.0 0.0507491 Petiole 0.0 0.0 0.0 Crozier 0.053817000000000004 0.0 0.161451 Rhizome 0.017755433333333334 0.0 0.0532663 Root 2.77768 0.0 8.33304