condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.26567 0.0 2.11775 Young Stem with Root 0.082463 0.0 0.247389 Mature Stem with Root 0.0 0.0 0.0 Root 8.555466666666666 0.0 25.6664