condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.141409 0.0 0.424227 Young Stem with Root 2.287246666666667 0.0 6.86174 Mature Stem with Root 0.0 0.0 0.0 Root 8.571166666666667 0.0 25.7135