condition mean min max Sterile Frond 0.51121 0.0 1.53363 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.934226666666667 0.0 8.80268 Root 0.040861666666666664 0.0 0.122585