condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.127746833333333 0.0626605 10.6888 Root 0.5200453333333334 0.0 0.880687