condition mean min max Sterile Frond 2.124559666666667 0.0 6.22609 Fertile Frond 0.2011936666666667 0.0 0.603581 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