condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.6585766666666667 0.0 1.97573 Mature Stem with Root 2.2734900000000002 0.0 6.82047 Root 2.8013836666666667 0.0 7.78026