| symphyotrichum firmum | | usa: michigan, kalamazoo co., t2s, r9w, s 1/2, sec. 13, custer reserve force training site | | 1331395880 |
| symphyotrichum firmum | | usa: michigan, barry co., yankee springs, 1 mile to 1.7 m. southwest of junction of gun lake and yankee springs roads. | | 1331394052 |
| symphyotrichum firmum | | USA: Michigan, Kalamazoo Co., T2S, R9W, S 1/2, Sec. 13, Custer Reserve Force Training Site | | 1316027670 |
| symphyotrichum firmum | | USA: Michigan, Barry Co., Yankee Springs, 1 mile to 1.7 m. southwest of junction of Gun Lake and Yankee Springs Roads. | | 1316023064 |