condition mean min max Sterile Frond 0.22362433333333334 0.0 0.670873 Fertile Frond 0.11195100000000001 0.0 0.335853 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 7.92161 0.0 17.9678 Root 1.4709533333333333 0.0 2.25336