condition mean min max Sterile Frond 0.23100066666666666 0.0 0.693002 Fertile Frond 0.46981999999999996 0.0 1.40946 Young Stem with Root 0.124461 0.0 0.373383 Mature Stem with Root 3.305454 0.177482 7.9925 Root 2.643957 0.532114 6.4364