condition mean min max Sterile Frond 0.158943 0.0 0.252889 Fertile Frond 1.2697399999999999 0.0 2.01639 Young Stem with Root 3.3335766666666666 1.16725 4.5184 Mature Stem with Root 2.25447 1.34187 3.47183 Root 4.422673333333333 1.93518 8.00559