Physaria arctica
| Physaria arctica | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Physaria |
| Species: | P. arctica
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| Binomial name | |
| Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz
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Physaria arctica is a perennial flowering herb in the family Brassicaceae, known by the common name arctic bladderpod.[1]
Description
[edit]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
[edit]Physaria arctica grows in sand and gravel from calcareous bedrock, river bars and terraces, cliff ledges, scree and talus slopes.[4]
References
[edit]- ^ "Physaria arctica (Wormsk. ex Hornem.) O'Kane & Al-Shehbaz". Integrated Taxonomic Information System (ITIS). Retrieved 17 June 2016.
- ^ 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.
- ^ a b 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.
- ^ a b c "Physaria arctica". Flora of North America. Retrieved 17 June 2016.
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