condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 21.647246666666668 0.27744 53.6511 Root 3.5614 0.0 6.4245