condition mean min max Sterile Frond 8.88764 1.22303 21.1863 Fertile Frond 10.154713333333333 0.0 21.4321 Young Stem with Root 7.62479 0.0 16.6569 Mature Stem with Root 11.972125 0.436335 27.1725 Root 11.54739 2.47789 27.9854