condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.1939566666666668 0.0 6.58187 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.07868033333333334 0.0 0.236041 Root 0.65432 0.0 1.96296