condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.6795633333333337 0.0 8.03869 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.1736976666666665 0.0 2.86963 Root 0.0 0.0 0.0