condition mean min max Sterile Frond 0.6008866666666667 0.0 1.80266 Fertile Frond 3.2999 0.0 6.34827 Young Stem with Root 10.5372 0.0 31.6116 Mature Stem with Root 2.4815679999999998 0.0 7.11992 Root 24.383924999999998 0.322713 72.3714