Chamaecyparis lawsoniana 'Casuarinifolia Aureovariegata' is similar in all respects to C. lawsoniana 'Casuarinifolia', except for the yellow variegation in the foliage.
This cultivar originated as a color sport, on a specimen of 'Casuarinifolia', found in the early 1900s by by Prinz Lobkowitz Nursery, Jezeí, Czech Republic.