| Family | Hemerocallidaceae (also placed in Liliaceae) |
| Scientific name | Hemerocallis fulva (L.) L. var. kwanso Regel |
| Synonyms | Hemerocallis fulva (L.) L. forma kwanso (Regel) Kitamura; Hemerocallis disticha Donn ex Ker Gawler var. kwanso (Regel) Nakai |
| Common name | (Japanese common name) yabu-kanzo (ヤブカンゾウ, 藪萓草 [meaning: bush day-lily]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) China | |
| Habitat | Fields, forest edge or rice paddy path near village or town |
| Chromosomal number | 2n=33 (3x) |
| Description | Scapes electing 50-150cm tall, no leaf at bottom and mid, small bracts (10-25mm long) at upper part. Leaves distichous fascicled, linear, droops at the top, 60-90cm long, 10-28mm wide, non hair. Roots long, partly spindle like expands. Flowers inflorescences dviding into 2, pedicels 6-10mm, corolla tubes ca. 2cm long, orange (or orange red or red) 6 perianths each 7cm long with dark spotted inside inner perianths, sometimes pistils look like petals, flowering in mid July to mid August. Sterile in general. Perennial plants. |
| Reference | Hemerocallis fulva (L.) L. var. kwanso Regel |
| Hemerocallis fulva var. kwanso Regel | |
| Production of rhein and rhein derivatives (US Patent 5652265/1997) | |
| Polymers containing antimicrobial agents and methods for making and using same (US Patent 5906825/1999) | |
| Antihelminthic anthraquinones and method of use thereof (US Patent 6903076/2005) | |
| Anticancer anthraquinones and method of use thereof (US Patent 6875746/2005) | |
| Preparation of Chinese herbal composite recipe used in horticulture (US Patent 7255885/2007) | |
| Note | Many authors have described that Hemerocallis fulva forma kwanso was introduced from China in ancient era. |
| July 2007 at rice paddy |
July 2007 at rice paddy |
July 2007 at rice paddy |
| July 2006 at rice paddy |