condition mean min max Sterile Frond 3.0669933333333335 0.0 7.09787 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.545028 0.0 0.889989 Root 0.0 0.0 0.0