condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 17.619284666666665 0.978184 49.7684 Root 0.7070226666666667 0.0 1.97927