condition mean min max Sterile Frond 0.5779559999999999 0.0 1.29547 Fertile Frond 3.0780600000000002 0.0 8.18463 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.2745093333333333 0.0 0.823528 Root 0.0 0.0 0.0