condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0604593 0.0 0.135873 Young Stem with Root 9.32935 4.19459 15.1088 Mature Stem with Root 5.11005 0.0 9.63989 Root 19.589100000000002 13.9885 24.9682