condition mean min max Sterile Leaflet 0.0 0.0 0.0 Mature Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Rhizome 4.136381 0.0 11.757 Stolon 0.087781 0.0 0.263343 Stolon with Root 6.13494 3.48921 7.86056