condition mean min max Sterile Frond 0.132044 0.0 0.396132 Fertile Frond 2.698798666666667 0.0 7.69324 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.071412 0.0 0.214236 Root 0.0 0.0 0.0