condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.033038366666666666 0.0 0.0991151 Mature Stem with Root 0.458499 0.0 1.22591 Root 7.893514 0.0 23.34