condition mean min max Sterile Frond 7.360679 0.0 22.0285 Fertile Frond 6.298358333333333 0.0 18.5368 Young Stem with Root 0.019142633333333332 0.0 0.0574279 Mature Stem with Root 0.1223663 0.0725459 0.174541 Root 0.0878332 0.054199 0.130184