condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.32091033333333335 0.0 0.962731 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.591368 0.0 1.59645 Root 6.020737666666667 0.424883 16.219