condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.03799966666666667 0.0 0.113999 Mature Stem with Root 0.044749000000000004 0.0 0.134247 Root 4.920533333333333 0.0 14.7616