condition mean min max Sterile Frond 6.68943 0.0 13.5094 Fertile Frond 6.943989999999999 1.16051 14.366 Young Stem with Root 7.39937 4.52964 13.0045 Mature Stem with Root 7.934327 0.708801 16.65 Root 3.1334400000000002 0.0 7.36354