condition mean min max Sterile Frond 2.24766 0.0 6.74298 Fertile Frond 0.11881000000000001 0.0 0.35643 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