condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.03894366666666667 0.0 0.116831 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.9175383999999998 0.0555902 8.5582 Root 0.0 0.0 0.0