condition mean min max Sterile Frond 4.636566666666667 3.26826 6.6185 Fertile Frond 2.854162 0.819643 6.92209 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.393477 0.751031 1.72396 Root 0.0 0.0 0.0