condition mean min max Sterile Frond 0.23674900000000001 0.0 0.40375 Fertile Frond 0.45860266666666666 0.0 1.22033 Young Stem with Root 0.894264 0.0 2.12653 Mature Stem with Root 6.28624 1.27745 10.9623 Root 12.864320000000001 2.49016 20.7936