condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.81208 0.0 2.43624 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.9802756666666665 0.526477 4.57569 Root 0.39076503333333334 0.0 1.13155