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| October 2006 at road side |
October 2007 at road side |
October 2007 at rice paddy |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Gnaphalium affine D. Don |
| Synonyms | Gnaphalium confusum de Candolle; Gnaphalium luteo-album L. subsp. affine (D. Don) Kostermans; Gnaphalium luteo-album L. var. multiceps (Wallich ex de Candolle) Hooker f.; Gnaphalium multiceps Wallich ex de Candolle; Helichrysum griffithii (griffithsii) Boissier; Laphangium affine (D. Don) Tzvelev; Pseudognaphalium affine (D. Don) Anderberg; Pseudognaphalium luteoalbum (L.) O. M. Hilliard & B. L. Burtt subsp. affine (D. Don) O. M. Hilliard & B. L. Burtt |
| Common name | (Japanese common name) haha-ko-gusa [mother and children weed] |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Fukushima prefecture), Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, Thailand, Indochina, Australia, Myanmar, Nepal, India, Pakistan, Afganistan | |
| Chromosomal number | 2n=14 |
| Description | Plants electing 15-40cm. Leaves 2-6cm length, 4-12mm width. Flowers involucres 3mm, flowering in April to June (and sometimes Septemebr to November). Winter annual plants. |
| Reference | Gnaphalium affine D. Don |
| Pseudognaphalium affine (D. Don) Anderb. | |
| Benzaldehyde oxime derivatives, production and use thereof (US Patent 5677465/1997) | |
| Herbicidal composition and weeding method (US Patent 5686386/1997) | |
| Note | common |
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| October 2006 at road side |
October 2007 at road side |
October 2007 at rice paddy |
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| October 2007 at road side |
