condition mean min max Sterile Frond 0.13172666666666666 0.0 0.39518 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.97582 0.0 5.92746 Root 0.60095 0.0 1.80285