condition mean min max Sterile Frond 0.49750999999999995 0.0 1.49253 Fertile Frond 1.7637233333333333 0.0 3.80502 Young Stem with Root 6.9920100000000005 0.0 14.8564 Mature Stem with Root 1.38764 0.0 2.84079 Root 0.4681253333333334 0.0 1.07665