condition mean min max Sterile Frond 3.4758666666666667 0.0 10.4276 Fertile Frond 1.9464690000000002 0.117398 5.55172 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