condition mean min max Sterile Frond 4.892914666666667 0.404484 8.1793 Fertile Frond 7.949706666666667 1.47705 16.5425 Young Stem with Root 16.912041000000002 0.133223 34.3727 Mature Stem with Root 12.170069999999999 1.43651 21.0876 Root 9.45797 1.50314 21.3398