condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.1173 0.0 9.3519 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.8482033333333333 0.0 2.54461 Root 0.07219199999999999 0.0 0.216576