condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 2.2903266666666666 0.0 6.87098 Mature Stem with Root 0.0 0.0 0.0 Root 1.29115 0.0 3.87345