condition mean min max Sterile Frond 14.250166666666667 0.0 42.7505 Fertile Frond 2.09911 0.0 6.29733 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.1811800000000001 0.0 3.54354 Root 0.0 0.0 0.0