condition mean min max Sterile Frond 4.804433333333333 0.0 14.4133 Fertile Frond 3.22363 0.0 9.67089 Young Stem with Root 12.834000000000001 0.0 38.502 Mature Stem with Root 7.4424 0.0 22.3272 Root 0.33353000000000005 0.0 1.00059