condition mean min max Sterile Frond 1.3969159999999998 0.0 4.0375 Fertile Frond 2.067167 0.0 5.28625 Young Stem with Root 0.9612233333333333 0.0 2.88367 Mature Stem with Root 0.130155 0.0 0.390465 Root 2.5031266666666667 0.0 7.50938