condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.08141633333333333 0.0 0.244249 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.2197000000000005 0.0 15.6591 Root 0.075219 0.0 0.225657