| Asteraceae | |
Aster commutatus subsp. commutatus
| | | |
| Asteraceae | |
Aster commutatus var. commutatus
| | | |
| Asteraceae | |
Aster commutatus subsp. crassulus
| (Rydb.) S.F. Blake | Contr. U.S. Natl. Herb. 25: 560 | 1925 |
| Asteraceae | |
Aster commutatus var. crassulus
| (Rydb.) S.F. Blake | J. Washington Acad. Sci. 30(11): 470 | 1940 |
| Asteraceae | |
Aster commutatus subsp. polycephalus
| (Rydb.) S.F. Blake | Contr. U.S. Natl. Herb. 25: 560 | 1925 |
| Asteraceae | |
Aster commutatus var. polycephalus
| (Rydb.) S.F. Blake | J. Washington Acad. Sci. 30(11): 470 | 1940 |