condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.06742766666666666 0.0 0.202283 Mature Stem with Root 3.285699 0.0 9.04385 Root 0.6479613333333333 0.0 1.50196