Solidago flexicaulis L.
|Sixth list of additions to the flora of Washington, D.C. vicinity. With descriptions of new species varieties by Edward L. Greene, Alvah A. Eaton, and the author|
E S Steele (1901) Proceedings of The Biological Society of Washington 14: 47-86
|Synopsis of the Species of Agromyzid Leaf Miners Described from North America (Diptera)|
Kenneth E Frick (1959) Proceedings of The United States National Museum 108: 347-465