| W |
| Waldsteinia
fragarioides, Barren strawberry |
| Waldsteinia ternata, Yellow
strawberry; Dry strawberry |
| Watsonia,
Bugle lily |
| Weigela coraeensis -- |
| Weigela florida, Weigela |
| Weigela florida 'Red Prince',
Red Prince weigela |
| Wisteria
floribunda, Japanese wisteria |
| Wisteria
fruitescens, American wisteria |
| Wisteria
macrostachya, Kentucky wisteria |
| Wisteria
sinensis, Chinese wisteria |
| Wisteria
venusta, Silky wisteria |
| Wolffia
spp., Water meal |
| Woodsia
obtusa, Blunt lobed wood fern; Cliff fern |
| Woodwardia
areolata = W.
angustifolia, Netted chain fern |
| Woodwardia
virginica, Virginia chain fern |