condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 9.628586666666667 0.231604 27.9071 Root 7.838933333333333 0.0 20.3878