condition mean min max Sterile Frond 0.122669 0.0 0.198066 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.18291433333333332 0.0 0.548743 Mature Stem with Root 3.9184026666666667 0.0 11.1125 Root 2.55928 0.0 6.80862