condition mean min max Sterile Frond 2.44726 0.0 7.34178 Fertile Frond 0.4942566666666666 0.0 1.48277 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.16566933333333334 0.0 0.497008 Root 0.0 0.0 0.0