condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.19073966666666667 0.0 0.572219 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.678877333333333 0.131102 13.7721 Root 1.66043 0.0 4.98129