| Specimen ID | 229916 |
| Group | Plants |
| Genus | Glyceria |
| Species | maxima |
| Common Name | reed mannagrass |
| State | MA |
| County | Essex |
| Locality | Great Wenham Swamp, Ipswich River Wildlife Sanctuary, town of Wenham |
| Mapping Accuracy | Approximate |
| HUC8 Name | Charles |
| HUC8 Number | 01090001 |
| Map | |
| Collection Year | 1990 |
| Year Accuracy | Estimated |
| Potential Pathway | dispersed |
| Status | unknown |
| Reference 1 |
| Ref. Number: | 10462 |
| Author: | Anderson, J.E., and A.A. Reznicek |
| Date: | 1994 |
| Title: | New England Note: Gyceria maxima (Poaceae) in New England. |
| Journal: | Rhodora |
| Volume: | 96 |
| Issue: | 885 |
| Pages: | 97-101 |
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| Reference 2 |
| Ref. Number: | 10464 |
| Author: | Lapin, M. |
| Date: | 1990 |
| Title: | Ipswich River Wildlife Sanctuary, Ecological Management Plan. |
| Journal: | Unpublished report. |
| Publisher: | Unpublished, Massachusetts Audubon Society, Lincoln, Mass. |
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| Comments | by 1994 forming a near monoculture about 2/3 acre; additional stand 60 m. southeast of larger Wenham pop, near edge of Perkins Island, 6.5 sq. meters in size. CollectorNumber: Anderson s.n. (MICH)+(NEBC) |
| Record Type | Literature |
| Museum Cat Number | herb/Univ. Michigan, |
| Freshwater/Marine | Freshwater |
