Herbarium specimen: Groenlandia densa
| Taxon: | Groenlandia densa (L.) Fourr. ("Opposite-leaved Pondweed") named by James Edgar Dandy 1946 |
|---|---|
| Collection date: | 1828 |
| Locality: | Great Britain, VC29 Cambridgeshire, Cambridge (N of),Swaffham, TL56 |
| ex herb: | Warrington Museum Mr William Wilson |
| Institution: | Manchester Museum (MANCH) |
| Accession number: | MANCH.346870.Kk892 |

