# List of Canadian plants by family U–W

Main page: List of Canadian plants by family
Families: A | B | C | D | E | F | G | H | I J K | L | M | N | O | P Q | R | S | T | U V W | X Y Z

## Ulmaceae

* Ulmus americana — American elm
* Ulmus rubra — slippery elm
* Ulmus thomasii — rock elm

## Urticaceae

* Boehmeria cylindrica — smallspike false nettle
* Laportea canadensis — Canada wood-nettle
* Parietaria pensylvanica — Pennsylvania pellitory
* Pilea fontana — springs clearweed
* Pilea pumila — Canada clearweed
* Urtica dioica — stinging nettle

## Valerianaceae

* Plectritis congesta — pink plectritis
* Plectritis macrocera — white plectritis
* Valeriana capitata — clustered valerian
* Valeriana dioica — wood valerian
* Valeriana edulis — hairy valerian
* Valeriana scouleri — Scouler's valerian
* Valeriana sitchensis — Sitka valerian
* Valeriana uliginosa — marsh valerian
* Valerianella chenopodiifolia — goosefoot cornsalad
* Valerianella umbilicata — navel-shape cornsalad

## Verbenaceae

* Glandularia bipinnatifida — Dakota vervain
* Phryma leptostachya — American lopseed
* Phyla lanceolata — fog-fruit
* Verbena bracteata — largebract vervain
* Verbena hastata — blue vervain
* Verbena simplex — narrowleaf vervain
* Verbena stricta — hoary vervain
* Verbena urticifolia — white vervain
* Verbena x deamii
* Verbena x engelmannii
* Verbena x perriana
* Verbena x rydbergii

## Violaceae

* Hybanthus concolor — green violet
* Viola adunca — sand violet
* Viola affinis — Le Conte's violet
* Viola bicolor — field pansy
* Viola biflora — northern violet
* Viola blanda — smooth white violet
* Viola canadensis — Canada violet
* Viola conspersa — American bog violet
* Viola cucullata — marsh blue violet
* Viola epipsila — northern marsh violet
* Viola glabella — smooth yellow woodland violet
* Viola howellii — Howell's violet
* Viola labradorica — Labrador violet
* Viola lanceolata — lanceleaf violet
* Viola langsdorffii — Aleutian violet
* Viola macloskeyi — smooth white violet
* Viola missouriensis — Missouri violet
* Viola nephrophylla — northern bog violet
* Viola novae-angliae — New England violet
* Viola nuttallii — Nuttall's violet
* Viola orbiculata — western rough-leaved violet
* Viola palustris — alpine marsh violet
* Viola pedata — bird's-foot violet
* Viola pedatifida — prairie violet
* Viola praemorsa — upland yellow violet
* Viola primulifolia — primrose-leaf violet
* Viola pubescens — downy yellow violet
* Viola purpurea — pine violet
* Viola renifolia — kidneyleaf white violet
* Viola rostrata — longspur violet
* Viola rotundifolia — roundleaf violet
* Viola sagittata — arrowleaf violet
* Viola selkirkii — great-spurred violet
* Viola sempervirens — redwood violet
* Viola septentrionalis — northern blue violet
* Viola sororia — woolly blue violet
* Viola striata — striped violet
* Viola triloba — three-lobed violet
* Viola vallicola — valley violet
* Viola x bissellii
* Viola x brauniae
* Viola x conjugens
* Viola x eclipes
* Viola x filicetorum
* Viola x malteana
* Viola x melissifolia
* Viola x palmata — early blue violet
* Viola x parca
* Viola x populifolia
* Viola x porteriana — Stone's violet
* Viola x primulifolia — primrose-leaf violet
* Viola x sublanceolata

## Viscaceae

* Arceuthobium americanum — American mistletoe
* Arceuthobium campylopodum — western dwarf-mistletoe
* Arceuthobium douglasii — Douglas-fir dwarf-mistletoe
* Arceuthobium laricis — larch dwarf-mistletoe
* Arceuthobium pusillum — dwarf mistletoe
* Arceuthobium tsugense — hemlock dwarf-mistletoe

## Vitaceae

* Parthenocissus quinquefolia — Virginia creeper
* Parthenocissus vitacea — woodbine
* Vitis aestivalis — summer grape
* Vitis labrusca — northern fox grape
* Vitis riparia — riverbank grape
* Vitis vulpina — winter grape

## Woodsiaceae

* Athyrium americanum — American alpine ladyfern
* Athyrium filix-femina — lady fern
* Cystopteris bulbifera — bulblet fern
* Cystopteris fragilis — fragile fern
* Cystopteris laurentiana — Laurentian bladderfern
* Cystopteris montana — mountain bladderfern
* Cystopteris protrusa — lowland brittle fern
* Cystopteris tenuis — upland brittle bladderfern
* Deparia acrostichoides — silver false spleenwort
* Diplazium pycnocarpon — glade fern
* Gymnocarpium disjunctum — Pacific oak fern
* Gymnocarpium dryopteris — northern oak fern
* Gymnocarpium jessoense — northern oak fern
* Gymnocarpium robertianum — limestone oak fern
* Gymnocarpium x achriosporum
* Gymnocarpium x brittonianum
* Gymnocarpium x intermedium
* Physematium oreganum — western cliff fern
* Physematium obtusum — bluntlobe woodsia
* Physematium scopulinum — Rocky Mountain woodsia
* Woodsia alpina — northern woodsia
* Woodsia glabella — smooth woodsia
* Woodsia ilvensis — rusty woodsia
* Woodsia x abbeae
* Woodsia x gracilis
* Woodsia x maxonii
* Woodsia x tryonis