Variegated Sunflower Identification: Helianthus or Something Else?

A gardener bought a "variegated foliage sunflower" at a farmer's market—2.5 ft, small yellow daisy-like flowers, striking white/green leaves. Can't find it in books.

Likely Not Helianthus

True perennial sunflowers (Helianthus) rarely have variegated foliage. Could be:

• Heliopsis helianthoides 'Loraine Sunshine' – Variegated oxeye sunflower. 2-3 ft, yellow daisies.
• Helianthus 'Table Mountain' – Sometimes variegated.
• Other genera: Variegated Rudbeckia, Coreopsis, or even a mislabeled annual.

Action

Search "variegated sunflower perennial" online. Check nursery catalogs (Plant Delights, Bluestone, White Flower Farm). It may be a new introduction.