condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 6.7297666666666665 0.0 20.1893 Young Stem with Root 0.13627299999999998 0.0 0.267097 Mature Stem with Root 0.267839 0.0 0.44072 Root 1.261418 0.589914 1.71766