condition mean min max Sterile Frond 2.5144516666666665 0.0 7.12937 Fertile Frond 0.16263166666666667 0.0 0.487895 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0