| Asteraceae | |
Erigeron strigosus var. beyrichii
| (Fisch. & C.A. Mey.) A. Gray | Syn. Fl. N. Amer. 1(2): 219 | 1884 |
| Asteraceae | |
Erigeron strigosus var. calcicola
| J.R. Allison | Castanea 66(1–2): 173–175, f. 7 | 2001 |
| Asteraceae | |
Erigeron strigosus fo. discoideus
| (J.W. Robbins ex A. Gray) Fernald | Rhodora 44(525): 340 | 1942 |
| Asteraceae | |
Erigeron strigosus var. discoideus
| J.W. Robbins ex A. Gray | Manual (ed. 5) 237 | 1867 |
| Asteraceae | |
Erigeron strigosus var. dolomiticola
| J.R. Allison | Castanea 66(1–2): 169–173, f. 6, 7 [upper right] | 2001 |
| Asteraceae | |
Erigeron strigosus var. eligulatus
| Cronquist | Brittonia 6(2): 269 | 1947 |
| Asteraceae | |
Erigeron strigosus var. gracilis
| Nutt. | Trans. Amer. Philos. Soc., n.s. 7: 311 | 1840 |
| Asteraceae | |
Erigeron strigosus var. hispidissimus
| Hook. | Fl. Bor.-Amer. 2(7): 18–19 | 1834 |
| Asteraceae | |
Erigeron strigosus var. septentrionalis
| (Fernald & Wiegand) Fernald | Rhodora 44(525): 340 | 1942 |
| Asteraceae | |
Erigeron strigosus fo. strigosus
| | | |
| Asteraceae | ! |
Erigeron strigosus var. strigosus
| | | |
| Asteraceae | |
Erigeron strigosus var. traversii
| (Shinners) Noyes | Sida 22(1): 273 | 2006 |
| Asteraceae | ** |
Erigeron strigosus var. typicus
| Cronquist | Brittonia 6(2): 267 | 1947 |