| Ref ID | Type | Author | Date | Title |
|
10669
| Database | Academy of Natural Sciences | 2016 | Academy of Natural Sciences of Drexel University Herbarium (PH) |
|
28890
| Database | Barrington, D. (curator), D.J. Allard, M. Sundue, H. White, E. Allen, and A. Clark. | 2015 | Pringle Herbarium (VT) |
|
24369
| Database | Center for Invasive Species and Ecosystem Health. | 2019 | EDDMapS: Early detection and distribution mapping system |
|
28184
| Database | Donoghue, M.J. (curator), and P. Sweeney (collections). | 2013 | Peabody Museum of Natural History (YU) |
|
10661
| Database | Farid, A. (curator). | 2018 | University of South Florida Herbarium (USF) |
|
26212
| Database | GBIF | 2013 | Global Biodiversity Information Facility (GBIF) Database. |
|
29255
| Database | Isaac, B. (collections). | 2016 | Carnegie Museum of Natural History Herbarium (CM) |
|
29549
| Database | Knox, E. (director). | 2017 | Deam Herbarium (IND) |
|
28167
| Database | Les, D.H., and R.S. Capers. | 2012 | George Safford Torrey Herbarium (CONN) |
|
38166
| Database | Lezberg, A. | 2019 | City of Boulder Herbarium (CIBO) |
|
18446
| Database | Morton Arboretum | 2017 | Morton Arboretum Herbarium (MOR) |
|
38154
| Web Page | Reznicek, A.A., E.G. Voss, and B.S. Walters. | 2011 | Filipendula ulmaria (L.) Maxim |
|
28331
| Database | SEINet Portal Network. | 2021 | Southwest Environmental Information Network |
|
38165
| Database | Simmons, M. | 2018 | Charles Maurer Herbarium (CS) |
|
28178
| Database | The New York Botanical Garden | 2018 | William and Lynda Steere Herbarium (NY) |
|
27998
| Database | University of Michigan | 2020 | University of Michigan Herbarium (MICH) |
|
18407
| Database | University of Minnesota | 2021 | J. F. Bell Museum of Natural History Herbarium (MIN) |
|
29264
| Database | University of Pennsylvania | 2021 | Morris Arboretum Herbarium (MOAR) |
|
38167
| Database | Wefferling, K. | 2020 | Gary A. Fewless Herbarium (UWGB) |
