Arctanthemum arcticum subsp. polare

(Hultén) Tzvelev in A. I. Tolmatchew

in A. I. Tolmatchew, Fl. Arct. URSS10: 116. 1987

Common names: Polar daisy chrysanthème polaire
Synonyms: Arctanthemum hultenii Dendranthema arcticum polare Dendranthema hultenii
Basionyms: Chrysanthemum arcticum polare
Found in FNA Volume 19. Treatment on page 537. Mentioned on page 536.
FNA19 P62 Hulteniella integrifolia.jpeg
Plants (2.5–)5–20(–26) cm (more in fruit). Stems not branched. Leaves mostly basal (cauline to midstem at most); basal and proximal: petioles 4–50 mm, blades cuneate to spatulate, 6–30 × 4–16 mm, mostly 0–3-lobed; cauline: petioles 0 or 10–25 mm, blades 4–23 × 1–8 mm. Heads 1(–2), 13–20 mm diam. (flattened, excluding rays). Peduncular bracts 6–12 × 1 mm. Ray laminae (7–)9–18(–21) × (1.5–)1.8–4.3 mm, veins 4–5(–12). 2n = 18.

Phenology: Flowering summer.
Habitat: Open, coastal, wet, brackish habitats on clay, sand, gravel, or rocks, beaches near tideline, coastal dunes, beach meadows, carex salt marshes, estuarine marshes and flood plains, coastal tundra
Elevation: 0–10 m

Distribution

Man., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, arctic Russia.

Discussion

In North America, subsp. polare ranges more or less continuously from St. Lawrence Island and the Seward Peninsula (Alaska) in the west, to the Ungava Peninsula (Quebec) in the east, along the low arctic continental coast, the coast of Hudson Bay, and the southern coast of the lower islands of the Arctic Archipelago.

References

None.

AuthorLuc Brouillet +
BasionymChrysanthemum arcticum polare +
Common namePolar daisy + and chrysanthème polaire +
Elevation0–10 m +
HabitatOpen, coastal, wet, brackish habitats on clay, sand, gravel, or rocks, beaches near tideline, coastal dunes, beach meadows, carex salt marshes, estuarine marshes and flood plains, coastal tundra +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering summer. +
ReferenceNone +
SynonymArctanthemum hultenii +, Dendranthema arcticum polare + and Dendranthema hultenii +
Taxon nameArctanthemum arcticum subsp. polare +
Taxon parentArctanthemum arcticum +
Taxon ranksubspecies +
VolumeVolume 19 +