condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.43203 0.0 7.29609 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.4337463333333333 0.0 1.09733