condition mean min max Sterile Frond 5.2907036666666665 0.0 15.722 Fertile Frond 7.035775666666667 0.0 20.5696 Young Stem with Root 8.070778 0.167343 23.8499 Mature Stem with Root 7.3817157 0.0826441 21.9728 Root 7.324857000000001 0.0 21.8396