condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.07023 0.0 0.21069 Mature Stem with Root 1.8739876666666666 0.0 4.98581 Root 3.6108 0.0 10.8324