condition mean min max Sterile Frond 7.233731 0.0 21.3938 Fertile Frond 16.66119 1.08865 44.4067 Young Stem with Root 1.9717436666666668 0.254021 3.42082 Mature Stem with Root 21.845740000000003 2.21004 55.8141 Root 9.727875666666666 0.889147 20.1086