condition mean min max Sterile Frond 0.7793910000000001 0.0 2.11959 Fertile Frond 2.66736 0.0 5.44149 Young Stem with Root 6.1475290000000005 0.0 17.7588 Mature Stem with Root 2.222117 0.0 6.4543 Root 0.0 0.0 0.0