condition mean min max Sterile Frond 2.6003133333333333 0.0 6.56412 Fertile Frond 0.61116 0.0 1.83348 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0