condition mean min max Sterile Frond 0.6685146666666667 0.0 1.81855 Fertile Frond 3.623123333333333 2.12377 6.38362 Young Stem with Root 2.54966 0.0 7.64898 Mature Stem with Root 2.7966230000000003 0.500429 6.42419 Root 11.797795 0.435835 31.8094