| Family | Asteraceae (alt. Compositae) |
| Scientific name | Erigeron annuus (L.) Persoon |
| Synonyms | Aster annuus L.; Aster stenactis E. H. L. Krause; Diplopappus annuus (Linnaeus) Bluff & Fingerhuth; Diplopappus dubius Cassini; Erigeron annuus (L.) Persoon forma discoideus Victorin & J. Rousseau; Erigeron annuus (L.) Persoon var. discoideus (Victorin & J. Rousseau) Cronquist; Erigeron annuus (L.) Persoon var. typicus Cronquist; Erigeron heterophyllus Muhlenberg ex Willdenow; Phalacroloma acutifolium Cassini; Phalacroloma annuum (L.) Dumortier; Stenactis annua (L.) Lessing |
| Common name | (Japanese common name) hime-jo-on (ヒメジョオン, 姫女菀 [meaning: dwarf jo-on (jo-on = Japanese pronunciation of Chinese common name of Turczaninowia fastigiata (syn. Aster fastigiatus))]) |
| (English common name) annual fleabane, daisy fleabane, eastern daisy fleabane, sweet-scabious, whitetop | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) [native] Canada, USA | |
| Habitat | Field, roadside, farmyard, riverside |
| Chromosomal number | 2n=27 (3x) |
| Description | Plants 30-120cm tall. Flowers white ligulate corollas 5-7mm long, flowering in June to October. Annual plants or winter annual plants. |
| Reference | Erigeron annuus (L.) Pers. |
| Erigeron annuus (Linnaeus) Persoon | |
| Erigeron annuus (L.) Pers. | |
| Mendelian segregation for two-factor apomixis in Erigeron annuus (Asteraceae) | |
| Process for preparation of .beta.-bourbonene (US Patent 4089764/1978) | |
| Composition for regulating plant growth (US Patent 4755214/1988) | |
| Volatile attractants for diabrotica species (US Patent 4880624/1989) | |
| Oxadiazolone derivative, production process thereof, and herbicide containing same (US Patent 4842640/1989) | |
| Regulation of plant metabolism by alpha, beta-or beta, gamma-unsaturated carboxylic acids or derivatives thereof (US Patent 4902334/1990) | |
| Herbicidal methods and compositions comprising fosmidomycin (US Patent 5002602/1991) | |
| Herbicidal composition and weeding method (US Patent 5686386/1997) | |
| Insect antifeedant for agriculture (US Patent 6034120/2000) | |
| Herbicide compositions and weedkilling method using the same (US Patent 7144842/2006) | |
| Note | Naturalized plants. |
| June 2007 at Ushiku Forest Park |
June 2007 at Ushiku Forest Park |
June 2007 at Ushiku Forest Park |
| June 2007 at Ushiku Forest Park |
June 2007 at Ushiku Forest Park |