condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 6.763663333333334 0.185619 19.7546 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 1.6673933333333333 0.0 5.00218