Papaver radicatum
Papaver hybridum
arctic poppy, iceland poppy, Macoun's poppy, root poppy
rough poppy, round pricklyhead poppy
branching.
to 12 cm;
petiole 2/3 length of leaf;
blade green on both surfaces, not glaucous, lanceolate, 1-2x-lobed with 2-3(-4) pairs of primary lateral lobes;
primary lobes broadly lanceolate or strap-shaped, apex obtuse to acute.
to 10 cm.
scapes erect or bowed and decumbent, less than 15 cm, sparsely to densely hispid.
peduncle appressed-hispid.
to 6.5 cm diam.;
petals yellow or white, rarely pink tinged, or brick red;
anthers yellow;
stigmas 4-7, disc convex.
petals early caducous, red to purplish red, with dark basal spot, to 25 mm;
anthers pale blue;
ovaries setose;
stigmas 4-8, disc convex and radially vaulted.
obovoid to subglobose, 1-2.5 times longer than broad, strigose, trichomes light to dark brown or black.
sessile, obovoid-ellipsoid to subglobose, obscurely to distinctly ribbed, to 1.5 cm, densely and firmly setose, stigmatic disc often deciduous.
Papaver radicatum
Papaver hybridum
Subspecies numerous (4 in the flora).
Many infraspecific taxa have been named from throughout the extensive range of this extremely variable species. Within North America, the following broadly circumscribed subspecies are generally, but not always, distinguishable.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Papaver hybridum should be expected elsewhere in the flora. Some California collections of this crop weed have been misidentified as Papaver apulum Tenore var. micranthum (Boreau) Fedde, which is not known to occur in the flora.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Scapes densely hispid with dark trichomes; capsules with dark brown trichomes. | subsp. polare |
1. Scapes hispid with light-colored trichomes (sometimes dark brown in subsp. alaskanum); capsules with light to dark brown trichomes. | → 2 |
2. Flowers 2 cm diam. or less; capsules ellipsoid-subglobose to oblong-obconic; Rocky Mountain system from Alaska and Yukon southward. | subsp. kluanense |
2. Flowers mostly greater than 2 cm diam.; capsules broadly obovoid to ellipsoid; Aleutian Islands n, e across arctic Alaska and Canada to Greenland. | → 3 |
3. Capsule trichomes generally with abruptly thickened bases; Aleutian Islands, islands of the Bering Strait and w coast of Alaska. | subsp. alaskanum |
3. Capsule trichomes generally without thickened bases; w, n Alaska e to Canada and Greenland. | subsp. radicatum |
BC
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
CA
