| 词条 | Sidalcea oregana |
| 释义 |
|image = Sidalcea oregana.jpg |genus = Sidalcea |species = oregana |authority = (Nutt. ex Torr. & A.Gray) A.Gray[1] |}}Sidalcea oregana is a species of flowering plant in the mallow family known by the common name Oregon checkerbloom.[1] DistributionIt is native to western North America from British Columbia to California to Utah, where it grows in a number of moist habitat types, such as marshes and meadows. The plant is somewhat variable in appearance, and the species is divided into a few subspecies; some authors also recognize varieties within subspecies. In general, this is a perennial herb growing to maximum heights well over one meter from a woody taproot. DescriptionSidalcea oregana is usually hairy in texture, the hairs thick and bristly toward the base of the stem. Most of the leaves are located low on the stem, basal or on long petioles.[3] Their blades are usually deeply divided into lobes (see image at left); upper leaves may be divided further into leaflets. The inflorescence is a dense or open spikelike raceme of many flowers. Each flower has five pink petals up to 2 centimeters long, usually notched at the end, and a central tube of reproductive parts (see flower closeup image).[2] SubspeciesSubspecies include:
References1. ^1 {{PLANTS|id=SIOR|taxon=Sidalcea oregana|accessdate=12 November 2015}} 2. ^1 {{cite book |vauthors=Baldwin BG, Goldman DH, Keil DJ, Patterson R, Rosatti TJ, Wilken DH |title=The Jepson Manual: vascular plants of California |year=2012 |edition=2nd |publisher=University of California Press |location=Berkeley CA}} 3. ^Calflora: Sidalcea oregana ssp. eximia 4. ^CNPS: ssp. eximia 5. ^California Native Plant Society, Inventory of Rare and Endangered Plants (online edition, v8-02): Sidalcea oregana ssp. eximia . accessed 3.8.2016. 6. ^{{cite book |author=Karen Wiese |title=Sierra Nevada Wildflowers | year=2013 |edition=2nd |publisher=Falcon Guides |isbn=978-0-7627-8034-1}} 7. ^1 {{cite book |author= Norman F. Weeden |title=A Sierra Nevada Flora |year=1996 |edition=4th |publisher=Wilderness Press |location=Berkeley CA |isbn=0-89997-204-7}} 8. ^Calflora: Sidalcea oregana ssp. spicata 9. ^Calflora: Sidalcea oregana ssp. valida 10. ^CNPS: ssp. valida 11. ^California Native Plant Society, Inventory of Rare and Endangered Plants (online edition, v8-02): Sidalcea oregana ssp. valida . accessed 3.8.2016. External links
11 : Sidalcea|Flora of the Northwestern United States|Flora of California|Flora of Nevada|Flora of Oregon|Flora of Utah|Flora of the Cascade Range|Flora of the Klamath Mountains|Flora of the Sierra Nevada (U.S.)|Natural history of the California chaparral and woodlands|Natural history of the California Coast Ranges |
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