Physaria arctica
Scientific classification Edit this classification
Kingdom: Plantae
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

Physaria arctica is a perennial flowering herb in the family Brassicaceae, known by the common name arctic bladderpod.[1]

Description

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

Habitat

Physaria arctica grows in sand and gravel from calcareous bedrock, river bars and terraces, cliff ledges, scree and talus slopes.[4]

References

  1. ↑ "Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz". Integrated Taxonomic Information System (ITIS). Retrieved 17 June 2016.
  2. ↑ 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.
  3. 1 2 Douglas, G.W., D.V. Meidinger, and J. Pojar, ed. (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.{{cite book}}: CS1 maint: multiple names: editors list (link)
  4. 1 2 3 "Physaria arctica". Flora of North America. Retrieved 17 June 2016.


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