2365532 408833 Eschscholzia californica Cham. A. Lounsberry, E. Rowan, A guide to wild flowers: t. 142, fig. 1 (1899) [E. Rowan]
1746142 408833 Eschscholzia californica Cham. E. Spach, Hist. Nat. Vég.: t. 140 (1834-1847) [M.me Spach]
1641582 408833 Eschscholzia californica Cham. J. Cassin, J.B. Lippincott, Illustrations of the birds of California, Texas, Oregon, British and Russian America: t. 7 (1862)