condition mean min max Sterile Frond 14.134289999999998 0.0 35.2407 Fertile Frond 2.156206333333333 0.0 5.94232 Young Stem with Root 0.05235600000000001 0.0 0.157068 Mature Stem with Root 0.06422833333333333 0.0 0.192685 Root 0.0 0.0 0.0