condition mean min max Sterile Leaflet 2.88135 0.0 4.63561 Fertile Leaflet with Sori 0.9208673333333334 0.0 2.50592 Primary Rachis 0.7043383333333334 0.0 1.67504 Petiole 0.091798 0.0 0.275394 Root 0.0 0.0 0.0