condition mean min max Sterile Frond 6.089766666666667 0.0 18.2693 Fertile Frond 0.53212 0.0 1.59636 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.3314283333333333 0.0 0.994285 Root 0.0 0.0 0.0