condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.4358703333333334 0.0 6.57422 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.8454166666666667 0.0 1.53312 Root 0.0 0.0 0.0