From Johnny's Selected Seeds:
"Improved selection for full-size heads.Johnny's produces Buttercrunch lettuce using the original stock seed from Cornell University. Forms a small, open but tightly bunched, 6" rosette that is fan-shaped rather than round. Dark green leaves and small compact hearts that blanch to an appetizing yellow color. Crisp and sweet. Slow bolting."
Lettuce: Buttercrunch 2-pack
$3.00Price