Biology:Symphyotrichum rhiannon
| Symphyotrichum rhiannon | |
|---|---|
.jpg)
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Astereae |
| Subtribe: | Symphyotrichinae |
| Genus: | Symphyotrichum |
| Subgenus: | Symphyotrichum subg. Symphyotrichum |
| Section: | Symphyotrichum sect. Symphyotrichum |
| Species: | S. rhiannon
|
| Binomial name | |
| Symphyotrichum rhiannon Weakley & Govus[1]
| |
| |
| Endemic distribution[2][3] | |
Symphyotrichum rhiannon is a species of flowering plant endemic to a serpentine barren in western North Carolina. It has been given the vernacular Rhiannon's aster and is also known as Buck Creek aster.[4] It is a perennial, herbaceous plant in the family Asteraceae.[3]
Chromosomes
Symphyotrichum rhiannon has a base number of x = 8.[5] Hexaploid cytotype with a chromosome count of 48 has been reported.[6]
Taxonomy
Symphyotrichum rhiannon was formally described by Alan Stuart Weakley and Thomas E. Govus in 2004.[3]
Etymology
Kauffman, Nesom, et al., formally explained the etymology of the species as follows:[3]
[It] is named in honor of Rhiannon Weakley, whose desire to rest during a field excursion led the authors to further investigate..., and also in honor of the original Rhiannon, a Welsh goddess figure....
Informally explained, Rhiannon Weakley was the toddler daughter of Alan and Allison Weakley. She needed a snack and a nap during the 2003 field excursion.[7]
"Rhiannon hadn’t had a nap that morning," says Alan Weakley, "and she had a little, ah, loss of composure." So the group plopped down to give Rhiannon a snack and a chance to rest. And there, growing all around, was [Laura] Mansberg's mystery aster.
Distribution and habitat
Symphyotrichum rhiannon is endemic to the Buck Creek Serpentine Barrens in Clay County, North Carolina, in the Nantahala National Forest.[3][8]
Conservation
NatureServe lists it as Critically Imperiled (G1).[4]
Citations
References
- Kauffman, G.L. (2004). "A new species of Symphyotrichum (Asteraceae: Astereae) from a serpentine barren in western North Carolina". SIDA, Contributions to Botany 21: 827–839. ISSN 0036-1488. https://www.biodiversitylibrary.org/page/9311057. Retrieved 8 September 2021.
- "Symphyotrichum rhiannon – Rhiannon's Aster". NatureServe. 4 June 2021. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.728675/.
- "Symphyotrichum rhiannon Weakley & Govus" (in en). Royal Botanic Gardens, Kew. 2019. http://www.plantsoftheworldonline.org/taxon/60437709-2.
- "Symphyotrichum rhiannon Rhiannon's Aster" (in en). Ontario. n.d.. https://uwaterloo.ca/astereae-lab/research/asters/symphyotrichum/symphyotrichum-subsect-symphyotrichum/symphyotrichum-rhiannon.
- "Symphyotrichum subsect. Symphyotrichum Punicei Asters" (in en). Ontario. 1 May 2021. https://uwaterloo.ca/astereae-lab/research/asters/symphyotrichum/symphyotrichum-subsect-symphyotrichum.
- Smith, J. (1 September 2005). "Rhiannon's aster – a toddler's tantrum helps a new flower get its name". Endeavors (endeavors.unc.edu) (Chapel Hill, North Carolina: UNC Research). ISSN 1933-4338. http://endeavors.unc.edu/fall2005/aster.php. Retrieved 29 November 2020.
- ((USDA, NRCS)) (2014). "Symphyotrichum rhiannon". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=SYRH.
- "Restoration of Buck Creek Serpentine Barrens, Tusquitee Ranger District, Nantahala National Forest". United States Forest Service, USDA. n.d.. https://www.fs.fed.us/wildflowers/Rare_Plants/conservation/success/buck_creek_serpentine.shtml.
Wikidata ☰ {{{from}}} entry
 |  |
