condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.105242 0.0 0.315726 Young Stem with Root 2.01519 0.0 6.04557 Mature Stem with Root 0.05018656666666667 0.0 0.0760272 Root 1.9756364999999998 0.0824995 4.32065