condition mean min max Sterile Frond 3.5466426666666666 0.0 10.4358 Fertile Frond 0.3904923333333334 0.0 1.04699 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.03774 0.0 0.11322 Root 0.0 0.0 0.0