condition mean min max Sterile Frond 1.4290666666666667 0.0 4.2872 Fertile Frond 3.2408136666666665 0.0 9.43451 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