condition mean min max Sterile Frond 0.19211866666666666 0.0 0.32458 Fertile Frond 3.24389 0.0 8.6549 Young Stem with Root 0.11404099999999999 0.0 0.20103 Mature Stem with Root 0.36623433333333333 0.0 0.620153 Root 0.08638 0.0 0.25914