condition mean min max Sterile Frond 2.995456666666667 0.0 8.98637 Fertile Frond 0.4201633333333334 0.0 1.26049 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.314182 0.0 0.942546 Root 0.0 0.0 0.0