condition mean min max Sterile Frond 2.39839 0.0 7.19517 Fertile Frond 0.8790266666666667 0.0 2.63708 Young Stem with Root 0.09052900000000001 0.0 0.271587 Mature Stem with Root 1.6008133333333334 0.0 3.72756 Root 1.3754600000000001 0.0 4.12638