condition mean min max Sterile Frond 0.08051166666666666 0.0 0.241535 Fertile Frond 0.842908 0.0 1.7031 Young Stem with Root 2.0115000000000003 0.0 6.0345 Mature Stem with Root 1.3740366666666666 0.0 2.87702 Root 6.2190010000000004 0.0 18.1536