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Taxon:  Themeda villosa (Poir.) A. Camus



Summary
Genus:
Themeda
Family:
Poaceae (alt. Gramineae)
Subfamily:
Panicoideae
Tribe:
Andropogoneae
Nomen number:
104131
Place of publication:
H. Lecomte, Fl. Indo-Chine 7(1):364. 1922
Verified:
11/07/1985 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Basionym
Anthistiria villosa Poir.

Homotypic Synonym(s)
Themeda gigantea (Cav.) Hack. subsp. villosa (Poir.) Hack.

No images
Reference(s)
  1. Bor, N. L. The grasses of Burma, Ceylon, India, and Pakistan. 1960
  2. CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) Note: four books on weeds worldwide in scope
  3. Dassanayake, M. D. & F. R. Fosberg, eds. A revised handbook to the flora of Ceylon. 1980- Note: introduced
  4. Grierson, A. J. C. & D. J. Long. Flora of Bhutan including a record of plants from Sikkim. 1984-
  5. Hawaii Department of Agriculture. List of plant species designated as noxious weeds for eradication or control purposes. 1992 http://www.hear.org/weedlists/usa/HI.htm
  6. Holttum, R. E. et al. A revised flora of Malaya. 1953-1971
  7. Lazarides, M. The tropical grasses of Southeast Asia. 1980
  8. Seed Regulatory and Testing Division, Agricultural Marketing Service, U.S.D.A. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act (updated annually). http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELPRDC5090172
  9. Shukla, U. Grasses of north-eastern India. 1996
  10. Wagner, W. L. et al. Flora of the Hawaiian Islands (on-line resource). http://botany.si.edu/pacificislandbiodiversity/hawaiianflora/query2.cfm
  11. Wu Zheng-yi & P. H. Raven et al., eds. Flora of China (English edition). 1994- http://www.efloras.org/browse.aspx?flora_id=2
Common names
English
Lyon's grass –
Distribution
order_codeStatusContinentSubcontinentCountryStateNote
1NativeAsia-TemperateChinaChinaFujian 
1NativeAsia-TemperateChinaChinaGuangdong 
1NativeAsia-TemperateChinaChinaGuangxi 
1NativeAsia-TemperateChinaChinaGuizhou 
1NativeAsia-TemperateChinaChinaHainan 
1NativeAsia-TemperateChinaChinaHenan 
1NativeAsia-TemperateChinaChinaHubei 
1NativeAsia-TemperateChinaChinaHunan 
1NativeAsia-TropicalIndian SubcontinentBangladesh  
1NativeAsia-TropicalIndian SubcontinentBhutan  
1NativeAsia-TropicalIndian SubcontinentIndia n.e.
1NativeAsia-TropicalIndian SubcontinentNepal  
1NativeAsia-TropicalIndo-ChinaThailand  
1NativeAsia-TropicalMalesiaIndonesia  
1NativeAsia-TropicalMalesiaMalaysia  
1NativeAsia-TropicalMalesiaPhilippines  
4NaturalizedAsia-TropicalIndian SubcontinentSri Lanka  
4NaturalizedPacificNorth-Central PacificUnited StatesHawaii 
Native
Asia-Temperate
  • CHINA: China [Fujian, Henan, Hunan, Hubei, Guangdong, Guizhou, Guangxi, Hainan]
Asia-Tropical
  • INDIAN SUBCONTINENT: Bangladesh, Bhutan, India (n.e.), Nepal
  • INDO-CHINA: Thailand
  • MALESIA: Indonesia, Malaysia, Philippines
Naturalized
Asia-Tropical
  • INDIAN SUBCONTINENT: Sri Lanka
Pacific
  • NORTH-CENTRAL PACIFIC: United States [Hawaii]
Economic Uses
Materials
Weed
potential seed contaminant (fide State Noxweed Seed) –


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.