Symphyotrichum frondosum (Nutt.) Nesom
| Review of the taxonomy of Aster sensu lato (Asteraceae: Astereae), emphasizing the New World species G L Nesom Phytologia 77: 141-297 | |
| Enumeration of the Species of Plants Collected by Dr. C. C. Parry, and Messrs. Elihu Hall and J. P. Harbour, during the Summer and Autumn of 1862, on and near the Rocky Mountains, in Colorado Territory, lat. 39°-41° Asa Gray (1863) Proceedings of The Academy of Natural Sciences of Philadelphia 15: 55-80 | |
| Nomenclatural notes on Aster (Asteraceae) -- II. New combinations and some transfers A G Jones (1984) Phytologia 55: 373-388 |