condition mean min max Sterile Frond 7.90369 1.89723 18.8094 Fertile Frond 1.79915 0.0 4.27717 Young Stem with Root 0.09751566666666667 0.0 0.292547 Mature Stem with Root 0.24836499999999997 0.0 0.745095 Root 0.10757100000000001 0.0 0.322713