Is there a tree called Robinia x holstii 'Britzensis'?

Yes, Robinia x holstii 'Britzensis' is a cultivar of the hybrid tree known for its ornamental features. It is a cross between Robinia pseudoacacia (black locust) and Robinia holstii, and it typically exhibits attractive foliage and flowers. This tree is valued for its hardiness and aesthetic appeal in landscape design.