condition mean min max Sterile Frond 1.2364039999999998 0.0 2.94297 Fertile Frond 13.67752 0.0 31.4236 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.25508333333333333 0.0 0.425816 Root 0.0 0.0 0.0