| Asteraceae | |
Erigeron annuus fo. annuus
| | | |
| Asteraceae | |
Erigeron annuus var. annuus
| | | |
| Asteraceae | |
Erigeron annuus fo. discoideus
| Vict. & J. Rousseau | Contr. Inst. Bot. Univ. Montreal 36: 61 | 1940 |
| Asteraceae | |
Erigeron annuus var. discoideus
| (Vict. & J. Rousseau) Cronquist | Brittonia 6(2): 266 | 1947 |
| Asteraceae | |
Erigeron annuus var. ramosus
| (Walter) Hyl. | Uppsala Univ. Arsskr. 1945(7): 309 | 1945 |
| Asteraceae | ** |
Erigeron annuus var. septentionalis
| (Fernald & Wiegand) Frey, Baltisb. & Edwards | | |
| Asteraceae | |
Erigeron annuus subsp. septentrionalis
| (Fernald & Wiegand) Wagenitz in Hegi | Ill. Fl. Mitt.-Eur. (ed. 2) 6/3 (2): 96 | 1965 |
| Asteraceae | |
Erigeron annuus subsp. strigosus
| (Muhl. ex Willd.) Wagenitz in Hegi | Ill. Fl. Mitt.-Eur. (ed. 2) 6/3 (2): 96 | 1965 |
| Asteraceae | ** |
Erigeron annuus var. typicus
| Cronquist | Brittonia 6(2): 266 | 1947 |