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// Workers AI · dad joke modeWhat did Physaria arctica say? "I'm a little 'frost' bitten.

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Physaria arctica
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Physaria
Species:
P. arctica
Binomial name
Physaria arctica
(Wormsk. ex Hornem.) O'Kane & Al-Shehbaz
Synonyms[1]
  • Alyssum arcticum Wormsk. ex Hornem. (1816) (basionym)
  • Lesquerella arctica (Wormsk. ex Hornem.) S.Watson
  • Lesquerella purshii (S.Watson) Fernald
  • Vesicaria arctica (Wormsk. ex Hornem.) Richardson
  • Vesicaria andicola Gillies ex Hook. & Arn.
  • Vesicaria leiocarpa (Trautv.) N.Busch

Physaria arctica is a perennial flowering herb in the family Brassicaceae, known by the common name arctic bladderpod.[2]

Description

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Plants are 6–12 cm high[3] with a short taproot and woody stem-base. Basal leaves, 2–6 cm and arranged in a rosette[4] predominate, and are obovate to oblanceolate, while cauline leaves, sessile or shortly petiolate, are oblanceolate or lingulate and 0.5-1.5 cm.[5] Inflorescences are loosely racemose, with flower stalks ascending or erect and 5–20 mm. There are 3-8 radially symmetrical flowers per inflorescence,[4] and the petals are spaulate, 5-6mm, with blades that narrow gradually to the claw.[5]

Distribution

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Physaria arctica ranges across much of the subarctic biome in North America, as well as the Russian Far East, and east Siberia. It is the only member of the genus known to occur in Asia. In North America it is known from Alaska, Alberta, British Columbia, Greenland, Labrador, Manitoba, Newfoundland, Northwest Territories, Nunavut, Québec, and Yukon.[6]

Habitat

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Physaria arctica grows in sand and gravel from calcareous bedrock, river bars and terraces, cliff ledges, scree and talus slopes.[5]

References

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  1. "Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 1 August 2025.
  2. "Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz". Integrated Taxonomic Information System (ITIS). Retrieved 17 June 2016.
  3. Aiken, S.G.; et al. "Flora of the Canadian Arctic Archipelago: Lesquerella arctica (Wormskjold. ex Hornem.) S. Watson". Canadian Museum of Nature. Canadian Museum of Nature. Retrieved 17 June 2016.
  4. 1 2 Douglas, G.W.; D.V. Meidinger; J. Pojar, eds. (1999). Illustrated Flora of British Columbia. Volume 4: Dicotyledons (Orobanchaceae Through Rubiaceae). Victoria: B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests.
  5. 1 2 3 "Physaria arctica". Flora of North America. Retrieved 17 June 2016.
  6. "Physaria arctica". Plants of the World Online.