condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.7758933333333333 0.0 5.32768 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.075083666666667 0.861981 10.2326 Root 2.194621 0.0 5.84194