condition mean min max Sterile Frond 0.01852233333333333 0.0 0.055567 Fertile Frond 0.036761433333333336 0.0 0.0552117 Young Stem with Root 0.051866999999999996 0.0 0.155601 Mature Stem with Root 0.072592 0.0 0.217776 Root 3.8651 0.0 11.5953