I started transplanting some Yucca hybrids tonight and took a few photos of their roots. It's always interesting to see which parent has dominant genes.

Yucca rupicola x filata has rupicola type roots (MB seed from Germany).


Yucca gloriosa x filata hybrid (Benny seed).


Yucca 'flaccida x' hybrid (Benny seed).


Yucca linearifolia x recurvifolia sure has linearifolia type roots. (seed from Horst of Germany)