condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.199003333333333 0.0 6.59701 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.28734533333333334 0.0 0.862036 Root 0.0 0.0 0.0