condition mean min max Sterile Frond 0.7321933333333334 0.0 2.19658 Fertile Frond 1.61183 0.0 3.00776 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 15.873323666666666 0.0 46.9871 Root 1.04531 0.0 3.13593