condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.15649066666666667 0.0 0.469472 Young Stem with Root 0.072503 0.0 0.217509 Mature Stem with Root 1.42357 0.0 4.27071 Root 4.7231 1.23935 10.8272