condition mean min max Sterile Frond 9.341633333333332 0.0 28.0249 Fertile Frond 7.8892999999999995 0.0 23.6679 Young Stem with Root 6.277333333333334 0.0 18.832 Mature Stem with Root 13.6179 0.0 40.8537 Root 1.84581 0.0 5.53743