| Ulex europaeus L.: |
|
| Ulmaria filipendula: see Filipendula vulgaris | |
| Ulmaria pentapetala: see Filipendula ulmaria | |
| Ulmus glabra HUDS.: |
|
| Ulmus laevis PALL.: |
|
| Ulmus minor MILL.: |
|
| Ulmus campestris: see Ulmus minor | |
| Ulmus carpinifolia: see Ulmus minor | |
| Ulmus effusa: see Ulmus laevis | |
| Ulmus montana: see Ulmus glabra | |
| Ulmus scabra: see Ulmus glabra | |
| Urostachys selago: see Huperzia selago | |
| Urtica cannabina L.: |
|
| Urtica dioica L.: |
|
| Urtica kioviensis ROGOW.: |
|
| Urtica pilulifera L.: |
|
| Urtica urens L.: |
|
| Urtica bollae: see Urtica kioviensis | |
| Urtica radicans: see Urtica kioviensis | |
| Utricularia australis R.BR.: |
|
| Utricularia intermedia HAYNE: |
|
| Utricularia minor L.: |
|
| Utricularia ochroleuca R.HARTMAN: |
|
| Utricularia vulgaris L.: |
|
| Utricularia neglecta: see Utricularia australis |
