Biology:Trillium angustipetalum
| Trillium angustipetalum | |
|---|---|
| |
| Calaveras Big Trees State Park in Calaveras and Tuolumne counties, California | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Liliales |
| Family: | Melanthiaceae |
| Genus: | Trillium |
| Species: | T. angustipetalum
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| Binomial name | |
| Trillium angustipetalum (Torr.) J.D.Freeman
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| Synonyms[2] | |
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T. angustipetalum
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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.[2][3][4]
Description
Trillium angustipetalum is a rhizomatous perennial herb with one or more erect stems growing up to 70 centimetres (28 in) in height. There is a whorl of three large leaves generally described as bracts each measuring up to 25 centimetres (9.8 in) 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 11 centimetres (4.3 in) long.[5]
Taxonomy
In 1856, John Torrey described Trillium sessile var. angustipetalum based on a specimen collected by John Milton Bigelow two years earlier in California.[6][7] In 1975, John Daniel Freeman described the species Trillium angustipetalum based on Torrey's variety.[8][9] The epithet angustipetalum means "narrow-petaled".
Distribution
The plant is native to northern and central California and southwestern Oregon, where it occurs in forests, woodlands, chaparral, and riparian zones. It is found in the Klamath Mountains, western Sierra Nevada foothills, and Outer Southern California Coast Ranges.[3][10]
Bibliography
- Case, Frederick W.; Case, Roberta B. (1997). Trilliums. Portland, Oregon: Timber Press. pp. 204–208. ISBN 978-0-88192-374-2. https://archive.org/details/trilliums00case.
- Freeman, J. D. (1975). "Revision of Trillium subgenus Phyllantherum (Liliaceae)". Brittonia 27 (1): 1–62. doi:10.2307/2805646.
References
- ↑ "Trillium angustipetalum". NatureServe Explorer. NatureServe. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.143413/Trillium_angustipetalum.
- ↑ 2.0 2.1 "Trillium angustipetalum (Torr.) J.D.Freeman". Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:258289-2.
- ↑ 3.0 3.1 "Trillium angustipetalum", Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria, Berkeley, California: The Calflora Database, https://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=%27%27Trillium+angustipetalum%27%27
- ↑ "Trillium angustipetalum". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=TRAN5.
- ↑ Case Jr., Frederick W. (2002), "Trillium angustipetalum", in Flora of North America Editorial Committee, Flora of North America North of Mexico (FNA), 26, New York and Oxford, http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101984, retrieved 12 March 2022
- ↑ "Trillium sessile var. angustipetalum Torr.". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. https://www.ipni.org/n/258377-2.
- ↑ Torrey, John (1856), Report on the botany of the expedition (Part V), Description of the general botanical collections (No. 4), Explorations and Surveys for a Railroad Route from the Mississippi River to the Pacific Ocean, IV: Route near the thirty-fifth parallel, explored by lieutenant A. W. Whipple, topographical engineers, in 1853 and 1854, Washington, D.C.: Department of War, p. 151, doi:10.5962/bhl.title.41563, OCLC 12125612, https://www.biodiversitylibrary.org/item/100867#page/184/mode/1up, retrieved 12 March 2022
- ↑ "Trillium angustipetalum (Torr.) J.D.Freeman". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. https://www.ipni.org/n/258289-2.
- ↑ Freeman (1975), pp. 55-56.
- ↑ "Trillium angustipetalum", County-level distribution map from the North American Plant Atlas (NAPA) (Biota of North America Program (BONAP)), 2014, http://bonap.net/MapGallery/County/Trillium%20angustipetalum.png, retrieved 12 March 2022
External links
- Jepson Manual eFlora (TJM2) treatment of Trillium angustipetalum
- Biodiversity Information Serving Our Nation (BISON): occurrence data + maps for Trillium angustipetalum
- Citizen science observations for Trillium angustipetalum at iNaturalist
- "Trillium angustipetalum". NatureServe, Arlington, Virginia. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.143413/Trillium_angustipetalum.
Wikidata ☰ Q7842048 entry
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