Pale Poppy, Pink Poppy: Papaver alboroseum - Perals white to rose with yellow basal spot.
Arctic Poppy, Lapland Poppy: Papaver lapponicum (Synonyms: Papaver hultenii, Papaver hultenii var. salmonicolor, Papaver radicatum ssp. lapponicum) - Petals yellow, sometimes tinged with pink towards the tips. Leaves greenish to glaucous on both surfaces.
Macoun's Poppy: Papaver macounii (ssp. discolor or macounii ?) - Petals yellow, occasionally white tinged yellow baselly, rarely pink. Leaf blades greenish on both surfaces (ssp. macounii) or dark green above and glaucous below (ssp. discolor).
Alaska Poppy, Arctic Poppy, Rooted Poppy: Papaver radicatum ssp. alaskanum (Synonyms: Papaver alaskanum, Papaver alaskanum var. grandiflorum, Papaver alaskanum var. latilobum, Papaver microcarpum ssp. alasakanum) - Leaf blades green on both surfaces. Petals yellow, rarely tinged with pink (in the Aleutian Islands).