condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.04051433333333333 0.0 0.121543 Mature Stem with Root 0.6236543333333333 0.0 1.45092 Root 2.709162 0.0 7.81102