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| November 2006 at riverside |
November 2006 at riverside |
November 2006 at riverside |
| Family | Asteraceae (alt. Compositae) |
| Scientific name | Erigeron strigosus Muhlenberg ex Willdenow |
| Synonyms | Doronicum ramosum Walter; Erigeron ambiguus Nuttall; Erigeron annuus (L.) Persoon subsp. septentrionalis (Fernald & Wiegand) Wagenitz; Erigeron annuus (L.) Persoon subsp. strigosus (Muhlenberg ex Willdenow) Wagenitz; Erigeron annuus (L.) Persoon var. ramosus (Walter) Hylander; Erigeron integrifolius Bigelow; Erigeron obscururs Lunell; Erigeron ramosus (Walter) Britton et al.; Erigeron ramosus (Walter) Britton et al. forma discoideus (Robbins ex A. Gray) Dole; Erigeron ramosus (Walter) Britton et al. var. beyrichii (Fischer & C. A. Meyer) Trelease ex Branner & Coville; Erigeron ramosus (Walter) Britton et al. var. discoideus (Robbins ex A. Gray) Britton et al.; Erigeron ramosus (Walter) Britton et al. var. itegrifolius (Bigelow) Farwell; Erigeron ramosus (Walter) Britton et al. var. septentrionalis Fernald & Wiegand; Erigeron strigosus Muhlenberg ex Willdenow forma discoideus (Robbins ex A. Gray) Fernald; Erigeron strigosus Muhlenberg ex Willdenow var. beyrichii (Fischer & C. A. Meyer) A. Gray; Erigeron strigosus Muhlenberg ex Willdenow var. discoideus Robbins ex A. Gray; Erigeron strigosus Muhlenberg ex Willdenow var. eligulatus Cronquist; Erigeron strigosus Muhlenberg ex Willdenow var. gracilis Nuttall; Erigeron strigosus Muhlenberg ex Willdenow var. septentrionalis (Fernald & Wiegand) Fernald; Erigeron strigosus Muhlenberg ex Willdenow var. typicus Cronquist; Phalacroloma beyrichii (Fischer & C. A. Meyer) Fischer & C. A. Meyer; Stenactis alabamensis Gandoger; Stenactis ambigua (Nuttall) de Candolle; Stenactis annua (L.) Lessing subsp. septentrionalis (Fernald & Wiegand) A. Löve & D. Löve; Stenactis annua (L.) Lessing subsp. strigosa (Muhlenberg ex Willdenow) Soo; Stenactis beyrichii Fischer & C. A. Meyer; Stenactis eriolepis Gandoger; Stenactis ramosa (Walter) Domin; Stenactis septentrionalis (Fernald & Wiegand) Holub; Stenactis strigosa (Muhlenberg ex Willdenow) de Candolle; Tessenia obscura (Lunell) Lunell; Tessenia ramosa (Walter) Lunell |
| Common name | (Japanese common name) hera-ba-hime-jo-on [spatula leaved dwarf jo-on (jo-on = Japanese pronunciation of Chinese common name of Aster fastigiatus)] |
| (English common name) daisy fleabane, prairie fleabane | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) [native] Canada, USA | |
| Chromosomal number | 2n=18, 27, 36, 54 |
| Description | Plants 30-100cm. Flowers white ligulate corollas 5-6mm, flowering in June to September (also in Octover to November). Perennial plants, winter annual plants. |
| Reference | Erigeron strigosus Muhl. ex Willd. |
| Erigeron strigosus Muhl. ex Willd. | |
| Erigeron strigosus Muhl. ex Willd. | |
| Erigeron strigosus Muhlenberg ex Willdenow var. strigosus | |
| 5-Cyanoalkyl-1,3,4-thiadiazol-2-ylureas (US Patent 3959303/1976) | |
| Herbicidal use of 5-cyanoalkyl-1,3,4-thiadiazol-2-ylureas (US Patent 4028090/1977) | |
| Note | Naturalized plants (Taishou era (1912-1926)). |
| There are many different forms of natural hybrids of Erigeron strigosus Muhlenberg ex Willdenow and Erigeron annuus (L.) Persoon. Photos below might be those of a plant which was such a natural hybrid (This plant had hairy flower heads like as Erigeron annuus (L.) Persoon.). |
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| November 2006 at riverside |
November 2006 at riverside |
November 2006 at riverside |
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| November 2006 at riverside |
November 2006 at riverside |
