Dichanthelium oligosanthes

Dichanthelium oligosanthes, known as Heller's rosette grass, fewanther obscuregrass, and few-flowered panicgrass,[1] is a frost-tolerant, perennial grass species native to North America. It is found primarily in the contiguous United States with specimens also reported in British Columbia and Alberta in Canada, as well as south of the Rio Grande in northern Mexico.[2][3] D. oligosanthes is most frequently in partially shaded glens within woods, recently cut forests, and grassy banks.[4]

Dichanthelium oligosanthes
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Genus: Dichanthelium
Species:
D. oligosanthes
Binomial name
Dichanthelium oligosanthes
(Schult.) Gould
Synonyms

Panicum oligosanthes Gould

The species is primarily cleistogamous, with individual florets often self pollinate without opening. Despite being a member of the grass subfamily Panicoideae which includes many species which utilize C4 photosynthesis, D. oligosanthes retains the more ancestral trait, using a C3 photosynthetic pathway.[5]

The genome of Dichanthelium oligosanthes is carried on nine chromosomes and is estimated to be between 750 and 950 megabases in size.[6] A draft genome assembly was generated from the progeny of a single self-pollinated plant collected from the Shaw Nature Reserve near Gray Summit, Missouri.[6]


References
  1. "Dichanthelium oligosanthes". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 30 October 2016.
  2. "Dichanthelium oligosanthes (Schult.) Gould - Checklist View". gbif.org.
  3. "Dichanthelium oligosanthes - GrassWorld". myspecies.info.
  4. Gould, Frank W. (1980). "The Mexican Species of Dichanthelium (Poaceae)". Brittonia. 32 (3): 353–364. doi:10.2307/2806733. JSTOR 2806733.
  5. GPWG II (11 November 2011). "New grass phylogeny resolves deep evolutionary relationships and discovers C4 origins". New Phytologist. 193 (2): 304–312. doi:10.1111/j.1469-8137.2011.03972.x. hdl:2262/73271. PMID 22115274.
  6. Studer, Anthony J. (28 October 2016). "The draft genome of the C3 panicoid grass species Dichanthelium oligosanthes". Genome Biology. 17 (1): 223. doi:10.1186/s13059-016-1080-3. PMC 5084476. PMID 27793170.
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