condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.326717 0.0 0.532961 Root 9.558113666666666 0.566511 26.6895