condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 8.1459 0.0 24.4377 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.46159666666666666 0.0 1.38479