condition mean min max Sterile Frond 1.92485 0.0 5.77455 Fertile Frond 1.5299966666666667 0.0 4.58999 Young Stem with Root 2.18453 0.0 6.55359 Mature Stem with Root 5.4386 0.0 16.3158 Root 1.7066856666666665 0.0 4.86926