condition mean min max Sterile Frond 1.9739366666666667 0.0 5.92181 Fertile Frond 0.136607 0.0 0.409821 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