condition mean min max Sterile Frond 18.434800000000003 14.2612 23.4673 Fertile Frond 19.4485 17.7056 22.8723 Young Stem with Root 18.1984 12.1526 23.5703 Mature Stem with Root 17.148233333333334 11.4622 27.1961 Root 10.58698 9.02894 12.0951