condition mean min max Sterile Frond 8.799216666666666 2.48737 19.8579 Fertile Frond 8.47532 3.58183 15.9636 Young Stem with Root 1.78949 0.0 3.91347 Mature Stem with Root 3.246686 0.331428 7.94937 Root 1.7997243333333335 0.0 5.04959