condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.1395403333333334 0.0 3.08929 Young Stem with Root 0.7058866666666667 0.0 2.11766 Mature Stem with Root 2.76816 0.0 5.83525 Root 1.05149 0.0 3.15447