condition mean min max Sterile Frond 0.082703 0.0 0.248109 Fertile Frond 1.8557233333333334 0.0 5.56717 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.35829333333333335 0.0 1.07488 Root 0.0 0.0 0.0