Papaver radicatum
Papaver walpolei
arctic poppy, iceland poppy, Macoun's poppy, root poppy
walpole's poppy
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 4 cm;
petiole to 3/4 length of leaf;
blade light green abaxially, dark green adaxially, sometimes glaucous, short-lanceolate, unlobed or 1x-lobed with 1(-2) pair(s) of lateral lobes, glabrous adaxially;
terminal lobe rarely with small secondary lobes, apex rounded.
scapes erect or bowed and decumbent, less than 15 cm, sparsely to densely hispid.
scapes erect, glabrate to hispid.
to 6.5 cm diam.;
petals yellow or white, rarely pink tinged, or brick red;
anthers yellow;
stigmas 4-7, disc convex.
to 3 cm diam.;
petals yellow, or white with yellow basal spot;
anthers yellow;
stigmas 4-5, disc convex.
obovoid to subglobose, 1-2.5 times longer than broad, strigose, trichomes light to dark brown or black.
turbinate to ellipsoid-obovoid, to 1 cm, sparsely to densely hirsute, trichomes light brown to black.
= 14.
Papaver radicatum
Papaver walpolei
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.)
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
