condition mean min max Sterile Frond 3.2027806666666665 0.0 9.38664 Fertile Frond 1.177983 0.0 3.41828 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0