condition mean min max Sterile Frond 0.07870966666666666 0.0 0.236129 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 4.454933333333334 0.0 13.3648