condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.5999033333333332 0.0 7.79971 Young Stem with Root 0.11160766666666666 0.0 0.334823 Mature Stem with Root 0.14113 0.0 0.42339 Root 0.0 0.0 0.0