condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.13877166666666665 0.0 0.298513 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.0256566666666664 0.0 9.07697 Root 0.78652 0.0 2.35956