Difference between revisions of "Physaria alpestris"
W. Amer. Sci. 15: 58. 1906.
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|common_names=Washington or alpine twinpod | |common_names=Washington or alpine twinpod | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Lesquerella alpestris | |name=Lesquerella alpestris | ||
|authority=(Suksdorf) G. A. Mulligan | |authority=(Suksdorf) G. A. Mulligan | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Brassicaceae;Brassicaceae tribe Physarieae;Physaria;Physaria alpestris | |hierarchy=Brassicaceae;Brassicaceae tribe Physarieae;Physaria;Physaria alpestris | ||
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name=Physaria alpestris | name=Physaria alpestris | ||
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|authority=Suksdorf | |authority=Suksdorf | ||
|rank=species | |rank=species | ||
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|publication title=W. Amer. Sci. | |publication title=W. Amer. Sci. | ||
|publication year=1906 | |publication year=1906 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_1013.xml |
|tribe=Brassicaceae tribe Physarieae | |tribe=Brassicaceae tribe Physarieae | ||
|genus=Physaria | |genus=Physaria | ||
Latest revision as of 22:29, 5 November 2020
Perennials; caudex usually simple, rarely branched, (cespitose); (silvery) pubescent throughout, trichomes several-rayed, rays (1- or) 2-bifurcate, (low-umbonate, tubercles relatively few, small). Stems several from base, decumbent to ascending, (unbranched), 0.5–1.5 dm. Basal leaves: (petiole slender); blade obovate, 3–5 cm (width 10–20 mm, base tapering abruptly to petiole), margins entire, (apex rarely slightly acute). Cauline leaves: blade oblanceolate, 0.5–1.5 cm (width 3–5 mm), margins entire. Racemes subcorymbose. Fruiting pedicels (divaricate, straight), 5–10 mm. Flowers: sepals oblong, 8–10 mm; petals spatulate, 12–14 mm. Fruits didymous, mostly highly inflated (strongly flattened at least in 1/2 toward replum), 14–18 × 14–18 mm, (papery, basal sinus slightly notched, apical open, shallow); valves (retaining seeds after dehiscence), evenly pubescent; replum lanceolate, 7–10 mm, width 1.5–2.5 mm, as wide as or wider than fruit, apex acute to acuminate; ovules 8–10 per ovary; style 5–7 mm. Seeds flattened, (2–3 mm). 2n = 48–52, 52, 64, 67–70.
Phenology: Flowering May–Jun.
Habitat: Alpine scree, rocky ridges, talus slopes, volcanic sands and gravel, serpentine gravel, granitic slopes, mountain shrub, subalpine fir, and whitebark pine communities
Elevation: (700-)1300-2400 m
Discussion
Selected References
None.