condition mean min max Sterile Frond 6.04027 4.39392 9.13666 Fertile Frond 2.409783 0.512119 4.50231 Young Stem with Root 1.227684 0.0 2.94966 Mature Stem with Root 2.528872333333333 0.904397 4.98581 Root 0.5377766666666667 0.0 1.61333