condition mean min max Sterile Frond 7.158734 0.365722 17.9754 Fertile Frond 1.6415066666666667 0.0 4.92452 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