condition mean min max Sterile Frond 0.0645594 0.0 0.132988 Fertile Frond 2.0091403333333333 0.0 5.81556 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.05694266666666667 0.0 0.170828