condition mean min max Sterile Frond 1.066243 0.177969 2.13637 Fertile Frond 2.003313 0.659742 4.43189 Young Stem with Root 4.2449900000000005 0.38786 6.54743 Mature Stem with Root 0.3780306666666667 0.25507 0.575761 Root 0.09360433333333333 0.0 0.280813