condition mean min max Sterile Frond 9.81258 0.0 21.2121 Fertile Frond 0.9282876666666666 0.0 1.86727 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