condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.11211633333333333 0.0 0.336349 Root 7.509283333333333 1.50362 18.6508