condition mean min max Sterile Frond 2.298292 0.0 6.37101 Fertile Frond 0.5301929999999999 0.0 1.47321 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