condition mean min max Sterile Frond 0.79623 0.0 2.38869 Fertile Frond 1.01497 0.0 1.78077 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 9.247776333333334 0.0 26.7586 Root 0.6766066666666667 0.0 2.02982