condition mean min max Sterile Leaflet 0.039797933333333334 0.0 0.0767526 Fertile Leaflet with Sori 0.029872199999999998 0.0 0.0472183 Primary Rachis 2.113793333333333 1.0299 3.10653 Petiole 1.9531143333333334 0.522553 2.77643 Crozier 0.0 0.0 0.0 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0