| 词条 | Polygonum sawatchense |
| 释义 |
| image = Polygonum sawatchense ssp. sawatchense -21291 (7727008662).jpg | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Eudicots | unranked_ordo = Core eudicots | ordo = Caryophyllales | familia = Polygonaceae | genus = Polygonum | species = P. sawatchense | binomial = Polygonum sawatchense | binomial_authority = Small 1893 | synonyms_ref = [1] | synonyms = *Polygonum douglasii subsp. johnstonii (Munz) J.C.Hickman
}}Polygonum sawatchense is a North American species of plants in the buckwheat family. It in the western United States and western Canada, from the Pacific Coast to the western Great Plains, so from British Columbia south to California and east as far as New Mexico, Colorado, Saskatchewan, and the Dakotas.[2][3]Polygonum sawatchense is a branching, hairless herb up to {{convert|50|cm|in|abbr=on}} tall. Leaves are narrow, up to {{convert|45|mm|in|abbr=on}} long. Flowers are green, red, or white, in elongated arrays.[4][5][6] Species is named for the Sawatch Range in Colorado, where Brandegee collected the type specimen.>[5]
References1. ^The Plant List, Polygonum douglasii subsp. johnstonii (Munz) J.C.Hickman {{Taxonbar|from=Q18082358}}{{Polygonaceae-stub}}2. ^Biota of North America Program 2014 county distribution map, Polygonum sawatchense 3. ^1 [https://www.biodiversitylibrary.org/page/9310011#page/1670/mode/1up Costea, Mihai & Tardif, Francois J. 2003. Sida 20(4): 1631-1640] includes descriptions of both subspecies plus line drawings and photos taken with scanning electron microscope 4. ^1 Flora of North America, Polygonum sawatchense Small, 1893. 5. ^1 [https://www.biodiversitylibrary.org/page/703302#page/268/mode/1up Small, John Kunkel 1893. Bulletin of the Torrey Botanical Club 20(5): 213–214] description in English 6. ^[https://www.biodiversitylibrary.org/page/703302#page/290/mode/1up Small, John Kunkel 1893. Bulletin of the Torrey Botanical Club 20(5): plate CLVI (156)] full-page line drawing of Polygonum sawatchense 7 : Polygonum|Flora of Western Canada|Flora of the Western United States|Flora of California|Flora of the Rocky Mountains|Flora of the Sierra Nevada (U.S.)|Plants described in 1893 |
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