condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.35834000000000005 0.0 1.07502 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.582644333333333 0.253873 4.57919 Root 0.3389954666666667 0.0 0.923937