condition mean min max Sterile Frond 11.29659 4.46597 18.2076 Fertile Frond 8.650226666666667 4.98115 14.8277 Young Stem with Root 4.528151 0.543173 9.34501 Mature Stem with Root 6.7806500000000005 2.48504 15.1697 Root 1.7887053333333331 0.0 4.59242