condition mean min max Sterile Frond 0.7113434666666667 0.0398894 1.40508 Fertile Frond 1.529367 0.226451 2.9894 Young Stem with Root 1.040806 0.067491 2.15718 Mature Stem with Root 5.13041 3.09772 7.70607 Root 18.192866666666667 10.4683 28.2144