condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.41224 0.0 1.23672 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.304113 0.0 0.651463 Root 4.235833333333333 0.0 12.7075