condition mean min max Sterile Frond 2.406483333333333 0.0 5.50249 Fertile Frond 1.841548 0.0 4.64837 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.04381733333333334 0.0 0.131452 Root 0.041483 0.0 0.124449