condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.1801474 0.0 0.500433 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.25200776666666663 0.0 0.666766 Root 2.5491593333333333 0.0 7.44662