condition mean min max Sterile Frond 2.8348766666666667 0.0 8.50463 Fertile Frond 0.18582600000000002 0.0 0.557478 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