condition mean min max Sterile Frond 2.21013 1.77232 2.67683 Fertile Frond 1.96408 1.14006 3.14851 Young Stem with Root 2.033193333333333 1.45876 3.06729 Mature Stem with Root 1.37692 0.98718 1.95936 Root 0.7857683333333334 0.374412 1.2704