condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.3432033333333333 0.0 7.02961 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.8122933333333333 0.0 2.43688 Root 0.0 0.0 0.0