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Taxon: Hemerocallis thunbergii Baker

Genus: Hemerocallis
Family: Asphodelaceae
Subfamily: Hemerocallidoideae
Nomen number: 18874
Place of publication: Gard. Chron. ser. 3, 8:94. 1890 (P. Barr, Garden 4:132. 1873, nom. nud.)
Link to protologue:
  • • lack of valid publication by Barr verified from original literature
  • • this name is thus antedated by H. serotina Focke (1888)
Name Verified on: 07-Aug-2008 by ARS Systematic Botanists. Last Changed: 30-Jun-2011
Species priority site is: National Arboretum (NA)
Accessions: 7 (4 active, 1 available) in National Plant Germplasm System


Common names:

  • late yellow day-lily  (Source: F Korea) - English
  • Thunberg's day-lily  (Source: F Korea) - English
  • asama-kisuge  (Source: F Korea) - Japanese Rōmaji
  • yusuge  (Source: F Korea) - Japanese Rōmaji

Distributional Range:


    • EASTERN ASIA: Korea, South

    Cultivated (cult.)


  1. Erhardt, W. Hemerocallis: daylilies. 1992 (Hemerocallis) 58.
  2. Kang, S. S. & M. G. Chung 1994. Hemerocallis hakuunensis (Liliaceae) in Korea (Sida) 16:23.
  3. Kang, S. S. & M. G. Chung 1997. Hemerocallis taeanensis (Liliaceae), a new species from Korea Syst. Bot. 22:430.
  4. Kitchingman, R. M. 1983. A survey of Hemerocallis species Bull. Brit. Hosta Hemerocallis Soc. 1(1):29.
  5. Kitchingman, R. M. 1983. A survey of Hemerocallis species part 1 Bull. Brit. Hosta Hemerocallis Soc. 1(3):32.
  6. Lee, Y. N. Flora of Korea. (F Korea)
  7. Matsuoka, M. & M. Hotta 1966. Classification of Hemerocallis in Japan and its vicinity Acta Phytotax. Geobot. 22:41.
  8. Munson, R. W., Jr. Hemerocallis, the daylily. 1989 (Hem Daylily) 10.

Check other web resources for Hemerocallis thunbergii Baker :

  • ICRA: International Cultivar Registration Authority (on-line resource). for Hemerocallis thunbergii cultivars
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2019. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=18874. Accessed 18 April 2019.