condition mean min max Sterile Leaflet 2.9090987578100003 2.27343e-06 7.8909 Fertile Leaflet with Sori 0.33477 0.0 1.00431 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 0.079433 0.0 0.238299 Root 0.0 0.0 0.0