condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.17216066666666666 0.0 0.516482 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.7547200000000003 0.0 10.1568 Root 3.6096 0.0 10.8288