condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.020374566666666667 0.0 0.0342484 Mature Stem with Root 0.12155633333333334 0.0 0.364669 Root 2.85937 0.0 8.57811