condition mean min max Sterile Frond 8.96999 1.69616 19.0721 Fertile Frond 8.81702 3.49336 14.8485 Young Stem with Root 3.2530453 0.0757349 9.30061 Mature Stem with Root 7.092856666666667 3.44633 13.4892 Root 9.10995 1.78545 14.945