condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Primary Rachis 11.173900000000001 0.0 33.5217 Petiole 0.0 0.0 0.0 Crozier 0.08382366666666667 0.0 0.251471 Rhizome 0.0 0.0 0.0 Root 0.0 0.0 0.0