condition mean min max Sterile Frond 3.113459 0.560806 8.04887 Fertile Frond 0.733661 0.209696 1.66331 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.032759133333333336 0.0 0.0982774 Root 0.13242833333333334 0.0 0.21336