condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 3.6219866666666665 0.0 5.71463 Secondary Rachis 2.5466533333333334 1.96937 3.04731 Petiole 2.445253 0.393739 5.16751 Crozier 0.0 0.0 0.0 Root 1.04498 0.38214 1.66445