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 3.4355382833333334 0.00877985 10.1814 Root 0.03701066666666667 0.0 0.111032