condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 6.953023333333333 0.11949 15.9301 Root 0.9886606666666666 0.0 2.31736