condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.3284500000000001 0.0 1.99544 Young Stem with Root 3.8975766666666667 0.0 8.75763 Mature Stem with Root 0.3314283333333333 0.0 0.994285 Root 0.0 0.0 0.0