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Stenanthium
Flowers of Stenanthium gramineum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Liliales
Family:	Melanthiaceae
Tribe:	Melanthieae
Genus:	Stenanthium (A.Gray) Kunth
Synonyms
Oceanoros Small Tracyanthus Small

Stenanthium is a North American genus of flowering plants in the tribe Melanthieae of the family Melanthiaceae.

Featherbells is a common name for plants in this genus.

Taxonomy

Molecular phylogenetic studies in the 21st century have resulted in number of changes to placements within this tribe.

Three species were removed from the genus to Anticlea and two or three (depending on whether S. leimanthoides is maintained as a separate species) added from Zigadenus sensu lato, the deathcamases. (See also Phylogeny of Melanthieae.) Members of Stenanthium, as currently circumscribed, may also be distinguished from other deathcamases by having a slender cylindrical bulb and the lack of sarcotesta on its brown seeds. They occur in the eastern and south-central United States.

Species

Species include:

Image	Scientific name	Common Name	Distribution
	Stenanthium densum (Desr.) Zomlefer & Judd	Osceola's plume	southeastern United States from Texas to Virginia
	Stenanthium diffusum Wofford		Tennessee
	Stenanthium gramineum (Ker Gawl.) Morong	eastern featherbells	eastern + south-central United States from eastern Texas to Florida north to Michigan and Connecticut.
	Stenanthium leimanthoides (A.Gray) Zomlefer & Judd	pine barren deathcamas	eastern + south-central United States from eastern Texas to Florida north to New York
	Stenanthium macrum Sorrie & Weakley		Gulf Coast, from Texas to Florida
	Stenanthium occidentale A.Gray	western featherbells	native to the Pacific Northwest, the Klamath Mountains in northwestern California, and Western Canada.
	Stenanthium tennesseense Sorrie & Weakley		southern Tennessee

Different botanists and sources recognize different numbers of distinct species. The Flora of North America and USDA recognize two: Stenanthium gramineum and Stenanthium occidentale. Several sources recognize S. leimanthoides as a separate species. The World Checklist of Selected Plant Families recognized three species in 2013, treating S. leimanthoides as a synonym of S. densum. Plants of the World Online treats S. occidentale as a synonym of Anticlea occidentale. Research by Sorrie and Weakley (2017) described two new species of Stenanthium in the southeastern United States: S. macrum and S. tennesseense.

See also

• Melanthiaceae genera

References

1. ^ WCSP_Stenanthium>Search for "Stenanthium", "World Checklist of Selected Plant Families". Royal Botanic Gardens, Kew. Retrieved 2013-08-23.
2. NRCS. "Stenanthium". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 2 December 2015.
3. ^ Zomlefer, WB; WS Judd (2002). "Resurrection of Segregates of the Polyphyletic Genus Zigadenus s.l. (Liliales: Melanthiaceae) and Resulting New Combinations". Novon. 12 (2): 299–308. doi:10.2307/3392971. JSTOR 3392971.
4. Zomlefer, WB; NH Williams; WM Whitten; WS Judd (2001). "Generic circumscriptions and relationships in the tribe Melanthieae (Liliales, Melanthiaceae), with emphasis on Zigadenus: Evidence from ITS and TRNL-F sequence data". American Journal of Botany. 88 (9). Botanical Society of America: 1657–1669. doi:10.2307/3558411. JSTOR 3558411. PMID 21669700.
5. USDA Plants Profile for Stenanthium gramineum (eastern featherbells) . accessed 6.26.2017.
6. "Stenanthium macrum". ipni.org. International Plant Names Index. Retrieved 2018-10-03.
7. USDA Plants Profile for Stenanthium occidentale (western featherbells) . accessed 6.26.2017.
8. Calflora Database: Stenanthium occidentale (Western featherbells, Western stenanthium) . accessed 6.26.2017.
9. Jepson eFlora (TJM2) treatment of Stenanthium occidentale . accessed 6.26.2017.
10. UC CalPhotos gallery of Stenanthium occidentale
11. "Stenanthium tennesseense". ipni.org. International Plant Names Index. Retrieved 2018-10-03.
12. eFloras.org: Stenanthium treatment . accessed 6.26.2017.
13. USDA: Stenanthium treatment. accessed 6.26.2017.
14. Weldy, Troy; David Werier & Andrew Nelson (2013). "Stenanthium leimanthoides". New York Flora Atlas. Florida Center for Community Design and Research. New York Flora Association. Retrieved 2013-08-21.
15. Biota of North America Program 2014 county distribution maps
16. "Stenanthium leimanthoides". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 2018-10-03.
17. ^ Sorrie, Bruce A.; Weakley, Alan S. (2017). "Stenanthium leimanthoides and S. densum (Melanthiaceae) revisited, with the description of two new species". Journal of the Botanical Research Institute of Texas. 11 (2): 275–286. doi:10.17348/jbrit.v11.i2.1068. S2CID 244564260.
18. "Stenanthium occidentale". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 2018-10-03.

• Melanthiaceae
• Flora of the Eastern United States
• Flora of the Northwestern United States
• Flora of Western Canada
• Flora of California
• Taxa named by Asa Gray
• Taxa named by Carl Sigismund Kunth
• Melanthiaceae genera