condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.7138366666666666 0.0 2.14151 Mature Stem with Root 0.0 0.0 0.0 Root 4.0073 0.0 12.0219