condition mean min max Sterile Frond 0.841415 0.449244 1.54338 Fertile Frond 3.4153700000000002 1.26098 7.57849 Young Stem with Root 9.379947333333334 0.742582 17.9051 Mature Stem with Root 8.703026666666666 2.68258 12.4062 Root 23.76887 2.62271 35.8863