condition mean min max Sterile Frond 4.1187 0.0 12.3561 Fertile Frond 1.8456599999999999 0.0 5.53698 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.12788066666666667 0.0 0.383642 Root 0.0 0.0 0.0