condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.642266 0.0 4.1346 Young Stem with Root 7.668266666666667 0.0 23.0048 Mature Stem with Root 0.4178233333333334 0.0 1.25347 Root 6.84106 0.0 15.1829