condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.3748336666666667 0.0 0.74946 Petiole 0.0 0.0 0.0 Crozier 0.454849 0.200015 0.933646 Rhizome 0.0 0.0 0.0 Root 7.640553333333334 2.95826 14.0667