condition mean min max Sterile Frond 9.50567 7.83515 11.7652 Fertile Frond 12.74522 8.29096 17.6775 Young Stem with Root 4.21862 2.9549 5.53442 Mature Stem with Root 7.445413333333333 5.98551 8.699 Root 10.15887 6.34386 15.8705