Index

R. 'Wilhelmine'

Azalea Hybrid

? X ?

Hybridized By: Van Houtte, L. B. (Louis Benoit) | Gentbrugge | Belgium, 1871

R. wilklei

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Will's Willi'

Rhododendron Hybrid

? X ?

Hybridized By: Rhein, W.L.. Mechanicsburg, Pennsylvania, USA

R. 'Will's Wisp'

Rhododendron Hybrid

R. fortunei ssp fortunei X R. 'Vulcan'

Hybridized By: Rhein, W.L.. Mechanicsburg, Pennsylvania, USA, 1978

R. 'Will-o'-the-Wisp'

Rhododendron Hybrid

R. minus var minus X R. formosum var formosum

Hybridized By: , 1994

R. 'Willa Owens'

Azalea Hybrid

? X ?

Hybridized By: Amann,I.L. | Bozman, Maryland | USA

R. 'Willamette'

Rhododendron Hybrid

? X ?

Hybridized By: James Delbert W.. Eugene, Oregon, USA, 1960

R. 'Willard'

Rhododendron Hybrid

? X ?

Hybridized By: Dexter, C.O.. Sandwich, MA, USA, 1943

R. 'Willbrit'

Rhododendron Hybrid

R. 'Britannia' X R. williamsianum

Hybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1960

R. 'Willem Barendtz'

Rhododendron Hybrid

? X ?

Hybridized By: Koster M. & Sons. Boskoop, Netherlands

R. 'Willem Hardijzer'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Willem II'

Azalea Hybrid

? X ?

Hybridized By: Koster M. & Sons | Boskoop | Netherlands

R. 'Willem III'

Azalea Hybrid

? X ?

Hybridized By: Seidel, T.J. | Dresden | Germany, 1894

R. 'Willem van Oranje'

Azalea Hybrid

? X ?

Hybridized By: Haerens, A. | St. Amandsberg | Belgium

R. 'Willem Vogt'

Rhododendron Hybrid

? X ?

Hybridized By: van Nes C. B . & Sons. Boskoop, Netherlands

R. 'Willi'

Rhododendron Hybrid

? X ?

Hybridized By: Seidel, T.J.R.. Dresden/Grüngräbchen, Germany, 1918

R. 'William Austin'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England

R. 'William Bean'

Rhododendron Hybrid

? X ?

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA

R. 'William Bovill'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK

R. 'William Bull'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium

R. 'William Carmichael'

Azalea Hybrid

? X ?

Hybridized By: Carmichael (gardener to Prince of Wales) | Sundringham, Norfolk | UK, 1879

R. 'William Cowper'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England

R. 'William Dallimore'

Rhododendron Hybrid

? X ?

Hybridized By: Kew. Royal Botanical Gardens, Surrey, England

R. 'William Davies'

Rhododendron Hybrid

? X ?

Hybridized By: Davies, I. Ormskirk, Lancashire, England

R. 'William Downing'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK

R. 'William Edgard'

Azalea Hybrid

? X ?

Hybridized By: No hybridiser registered, 1937

R. 'William Ewart Gladstone'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England, 1881

R. 'William Fetterhoff'

Rhododendron Hybrid

? X ?

Hybridized By: Fetterhoff, W.M.. Gibsonia, Pennsylvania, USA

R. 'William Fortescue'

Rhododendron Hybrid

? X ?

Hybridized By: Fortescue, L.S.

R. 'William Godfrey'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1928

R. 'William Hozier'

Rhododendron Hybrid

? X ?

Hybridized By: Vuylsteke, C., 1890

R. 'William Hurley'

Rhododendron Hybrid

? X ?

Hybridized By: Hardy, G.A.

R. 'William King'

Rhododendron Hybrid

R. 'Gladys Group' X R. 'Ilam Canary'

Hybridized By: King, L.M. Mrs.. Wanganui, New Zealand, 1958

R. 'William Lewis'

Rhododendron Hybrid

R. 'Lem's Tangerine' X R. 'Frank Galsworthy'

Hybridized By: Newcomb, E.F., 1999

R. 'William R. Coe'

Rhododendron Hybrid

? X ?

Hybridized By: Dexter, C.O.. Sandwich, MA, USA

R. 'William Rogers Coe'

Rhododendron Hybrid

? X ?

Hybridized By: Dexter, C.O.. Sandwich, MA, USA

R. 'William Watson'

Rhododendron Hybrid

? X ?

Hybridized By: Gill, Richards & Sons. Penryn, Cornwall, England

R. 'Williams'

Rhododendron Hybrid

? X ?

Hybridized By: Greer Gardens, 1976

R. williamsianum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Williamsiana

R. williamsii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Willy'

Azalea Hybrid

? X ?

Hybridized By: van Nes C. B . & Sons | Boskoop | Netherlands, 1939

R. 'Willy x Mrs Carmichael'

Azalea Hybrid

R. 'Willy' X R. 'Mrs Carmichael'

Hybridized By: No hybridiser registered

R. 'Willy-nilly'

Rhododendron Hybrid

? X ?

Hybridized By: Ingram, C.. Benenden, Kent, England

R. 'Wilma Hentschel'

Rhododendron Hybrid

? X ?

Hybridized By: Reich, W., 1996

R. 'Wilson no. 33'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration

R. wilsonianum

Species

R. wiltonii

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

R. 'Win Paul'

Rhododendron Hybrid

R. souliei X R. 'Diva Group'

Hybridized By: Larson, H.L.. Tacoma, Washington, USA, 1962

R. 'Wind River'

Rhododendron Hybrid

R. 'Mindy's Love' X R. 'Whopper x Lem's Cameo X Whopper x Brandt's Tropicana'

Hybridized By: Barlup, Jim. Bellevue, USA, 1988

R. 'Windbeam'

Rhododendron Hybrid

R. 'Conestoga' X ?

Hybridized By: Nearing, G.G.. Ramsey, NJ, USA, 1934

R. 'Windflower'

Rhododendron Hybrid

? X ?

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA