Английская Википедия:Chaenactis douglasii
Шаблон:Short description Шаблон:Speciesbox
Chaenactis douglasii is a North American species of flowering plant in the daisy family known by the common name Douglas' dustymaiden.
Description
Chaenactis douglasii is a variable herb, generally a perennial. It grows erect to Шаблон:Convert, with one to many stems coated in cobwebby hairs. The woolly or hairy leaves may be up to Шаблон:Convert long and are divided intricately into many lobes with curled or twisted tips. Stem leaves become smaller and stalkless upwards.[2][1][3][4]
The inflorescence produces one or more flower heads, each up to about Шаблон:Convert long. The flower head is lined with flat, glandular, blunt-pointed phyllaries and contains several white or pinkish tubular disc flowers with protruding anthers.[2][5]
The fruit is an achene about Шаблон:Convert long including its pappus of scales.[2]
- Varieties
- Chaenactis douglasii var. alpina A.Gray
- Chaenactis douglasii var. douglasii
Distribution
The plant is found in western Canada and the western United States from British Columbia to Saskatchewan, and south to California to New Mexico, with a few isolated populations in Nebraska and the Dakotas.[6] It grows in a wide variety of habitats, including harsh environments such as rock fields in alpine climates in the Sierra Nevada, east of the crest of the Cascade Range of Washington and Oregon, scrubland and desert, and disturbed areas such as roadsides. Distributed over a wide range of elevations, from sea level to Шаблон:Convert, it is found most often between Шаблон:Convert.[7][8][9]
Uses
Some Plateau Indian tribes used this plant as a dressing for burns, wounds, and sores.[10]
References
External links
- Шаблон:Commons-inline
- Jepson Manual Treatment of Chaenactis douglasii
- United States Department of Agriculture Plants Profile for Chaenactis douglasii
- Chaenactis douglasii — Calphotos Photo gallery, University of California
- ↑ 1,0 1,1 Шаблон:Cite web
- ↑ 2,0 2,1 2,2 Flora of North America, Hoary pincushion, Douglas’s dustymaiden, Chaenactis douglasii (Hooker) Hooker & Arnott, Bot. Beechey Voy. 354. 1839.
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite book
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Calflora taxon report, University of California, Chaenactis douglasii (Hook.) Hook. & Arn., Chaenactis, Douglas' dustymaiden, hoary chaenactis
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite book
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- Chaenactis
- Plants described in 1833
- Flora of the Western United States
- Flora of Western Canada
- Natural history of the California Coast Ranges
- Natural history of the Mojave Desert
- Alpine flora
- Plants used in traditional Native American medicine
- Flora without expected TNC conservation status
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