condition mean min max Sterile Frond 1.4215033333333331 0.0 4.26451 Fertile Frond 3.2650466666666667 0.0 9.79514 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0