condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.464428333333333 0.0 6.93187 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.9191573333333333 0.383642 1.95044 Root 0.0 0.0 0.0