condition mean min max Sterile Frond 3.543416666666667 1.15003 7.46384 Fertile Frond 3.0870610000000003 0.715273 6.55001 Young Stem with Root 2.060379 0.106927 3.94504 Mature Stem with Root 2.777647 0.934011 5.63738 Root 8.484129666666666 0.812289 14.006