condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 7.7930399999999995 4.18408 14.056 Rhizome 2.7666946666666665 0.313314 5.34852 Root 0.13274533333333333 0.0 0.398236