condition mean min max Sterile Frond 2.0485991666666665 0.0 6.11479 Fertile Frond 0.12723416666666668 0.0 0.346188 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