condition mean min max Sterile Frond 15.232840000000001 7.41492 27.6654 Fertile Frond 16.272403333333333 8.77641 29.1546 Young Stem with Root 18.41072 9.29386 32.3382 Mature Stem with Root 17.5808 13.2648 25.4957 Root 12.965653333333334 7.42246 20.7955