| Preview pict. | Species, Subspecies, or Variety | Family |  | Photos from | 
|  | Wahlenbergia hederacea / Ivy-Leaved Bellflower |  | Campanulaceae / Bellflower Fam. |  | D 
E | 
|  |  Waldsteinia / Avens (2 Syn.) |  | Rosaceae / Rose Fam. |  |  | 
|  | Willemetia stipitata / Willemetia |  | Asteraceae / Composite Fam. |  | A | 
|  |  Wolffia / Water-Meal (2 Taxa) |  | Araceae / Arum Fam. |  |  | 
|  | Woodsia ilvensis / Oblong Woodsia, Rusty Woodsia |  | Woodsiaceae / Cliff Fern Fam. |  | D | 
|  | Wulfenia carinthiaca / Wulfenia |  | Plantaginaceae / Plantain Fam. |  | D 
F | 
|  |  wagneri (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | waldsteinia, Geum / Barren Strawberry, Waldsteinia |  | Rosaceae / Rose Fam. |  | D | 
|  |  waldsteiniana (2 Taxa) |  |  |  |  | 
|  |  waldsteinii (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | wallrothii, Valeriana −−> Valeriana pratensis subsp. angustifolia |  | Caprifoliaceae / Honeysuckle Fam. |  | A 
D 
F 
HR | 
|  | walo-kochii, Ranunculus / Koch's Goldilocks |  | Ranunculaceae / Buttercup Fam. |  | D | 
|  |  walteri-langii (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | webbiana, Scabiosa / Webb's Scabious |  | Caprifoliaceae / Honeysuckle Fam. |  | GR | 
|  |  webbii (3 Taxa) |  |  |  |  | 
|  |  weissii (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | weldeniana, Anthyllis vulneraria subsp. / Welden's Kidney Vetch |  | Fabaceae / Legumes |  | HR | 
|  | weldenii, Plantago / Buck's-horn Plantain |  | Plantaginaceae / Plantain Fam. |  | D 
Kre 
Mal 
Rho | 
|  | wendtii, Cryptocoryne / Wendt's Water Trumpet |  | Araceae / Arum Fam. |  | A | 
|  | weyleri, Ranunculus / Weyler's Buttercup |  | Ranunculaceae / Buttercup Fam. |  | Mal | 
|  | wibeliana, Deschampsia / Wibel's Hair Grass |  | Poaceae / Grass Fam. |  | D | 
|  | wienii, Oenothera / Danzig Evening Primrose |  | Onagraceae / Willowherb Fam. |  | D | 
|  |  wildpretii (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | willdenowii, Doronicum x / Willdenow's Leopard's-Bane |  | Asteraceae / Composite Fam. |  | D | 
|  | willeana, Salvia / Troodos Sage |  | Lamiaceae / Mint Fam. |  | Zyp | 
|  |  willkommii (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | winteri, Rubus / Winter's Bramble |  | Rosaceae / Rose Fam. |  | D | 
|  |  wirtgenii (2 Taxa + 3 Syn.) |  |  |  |  | 
|  |  wittrockiana (2 Taxa) |  |  |  |  | 
|  | woronowii, Galanthus / Woronow's Snowdrop, Green Snowdrop |  | Amaryllidaceae / Amaryllis Fam. |  | D | 
|  | wulfeniana, Primula / Wulfen's Primrose |  | Primulaceae / Primrose Fam. |  | A | 
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