condition mean min max Sterile Leaflet 0.4642616666666667 0.0 0.960454 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 2.48414 0.0 4.25872 Secondary Rachis 7.834023333333334 0.0 14.6157 Petiole 2.5215433333333332 0.0 6.23566 Crozier 0.06296600000000001 0.0 0.188898 Root 0.409864 0.0 0.80384