condition mean min max Sterile Leaflet 4.5523766666666665 3.85432 5.69285 Fertile Leaflet with Sori 3.888201 0.660013 9.82286 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.8227906666666667 0.508071 1.40935 Petiole 0.44802000000000003 0.0 1.34406 Crozier 0.0 0.0 0.0 Root 0.0 0.0 0.0