condition mean min max Sterile Frond 12.474446666666665 8.83814 15.3844 Fertile Frond 15.1499 11.5833 19.4555 Young Stem with Root 26.7348 15.1959 34.8271 Mature Stem with Root 17.026433333333333 12.0087 20.1368 Root 11.97442 7.78456 16.1406