condition mean min max Sterile Frond 2.3356766666666666 0.0 7.00703 Fertile Frond 1.38099 0.0 4.14297 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