condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.3872636666666667 0.729991 7.72157 Young Stem with Root 0.8083100000000001 0.0 1.59817 Mature Stem with Root 0.08382256666666667 0.0168114 0.182018 Root 0.02934 0.0 0.0728387