condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 2.4592133333333335 0.0 7.37764 Mature Stem with Root 0.24850433333333333 0.0 0.745513 Root 0.0 0.0 0.0