condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 5.153 0.0 15.459 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.43479333333333336 0.0 1.30438 Root 0.13237000000000002 0.0 0.39711