condition mean min max Sterile Frond 0.5873863333333333 0.0 1.1194 Fertile Frond 4.375766666666666 0.0 13.1273 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0