| 词条 | Trillium angustipetalum |
| 释义 |
|genus = Trillium |species = angustipetalum |authority = (Torr.) J.D.Freeman [1] |synonyms_ref = [2] |synonyms ={{collapsible list|bullets = true |title=Synonymy |Trillium sessile var. angustipetalum Torr. |Trillium giganteum var. angustipetalum (Torr.) R.R.Gates |Trillium chloropetalum var. angustipetalum (Torr.) Munz }}}} Trillium angustipetalum, with the common name is narrowpetal wakerobin, is a species of Trillium, plants which may be included within the Liliaceae (lily family) or the newer family Melanthiaceae.[1][2][3]DistributionThe plant is native to northern and central California and southwestern Oregon, where it occurs in forests, woodlands, chaparral, and riparian zones.[1][4][5] It is found in the Klamath Mountains, western Sierra Nevada foothills, and Outer Southern California Coast Ranges.[1] DescriptionTrillium angustipetalum is a rhizomatous perennial herb with one or more erect stems growing up to {{convert|70|cm}} in height. There is a whorl of three large leaves generally described as bracts each measuring up to {{convert|25|cm}} in length and round or somewhat oval. They are green and mottled with brownish or darker green spots. Each stem produces one flower, which is held on top of the bracts. The ill-scented flower has three lance-shaped green or red sepals and three narrow purple or maroon petals measuring up to {{convert|11|cm}} long.[6] References1. ^1 2 3 Calflora: Trillium angustipetalum 2. ^1 Kew World Checklist of Selected Plant Families 3. ^{{PLANTS|id=TRAN5|taxon=Trillium angustipetalum|accessdate=15 December 2015}} 4. ^Biota of North America Program 2013 county distribution map 5. ^Calflora taxon report, University of California, Trillium angustipetalum (Torrey) Freeman narrow petaled wakerobin, narrowpetal wakerobin 6. ^Flora of North America, Trillium angustipetalum External links{{Wikispecies}}
10 : Trillium|Flora of California|Flora of Oregon|Flora of the Klamath Mountains|Flora of the Sierra Nevada (U.S.)|Endemic flora of the United States|Natural history of the California chaparral and woodlands|Natural history of the California Coast Ranges|Plants described in 1857|Taxa named by John Torrey |
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