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 2.7532963333333336 0.0 7.67719 Root 4.175385400000001 0.0 12.4631