List of Rhododendron species

Last updated

This List of Rhododendron species includes species of the genus Rhododendron , which is in the plant family Ericaceae. Depending on the source, there are anywhere from 800 to over 1,100 wild species. [1] [2] The vast majority of Rhododendron species are native to the eastern Himalaya and southeast Tibet, along with the islands of Java, Sumatra, Borneo, New Guinea, and the Philippines. The rest are broadly spread throughout the northern hemisphere in relatively small isolated populations, including Japan, northwestern North America, the Appalachian, and the Caucasus Mountains. [3]

Contents

Rhododendron has eight traditionally accepted subgenera based on morphology, still the consensus taxonomy used by most authorities: [4] Azaleastrum ; Candidastrum ; Hymenanthes ; Mumeazalea ; Pentanthera ; Rhododendron ; Therorhodion ; Tsutsusi . [5] Hymenanthes, with approximately 225 species, and subgenus Rhododendron, with approx. 400 species, comprise what gardeners typically describe as "Rhododendrons." Two subgenera are generally known to gardeners as "Azaleas", and include many fewer true species: Pentanthera, which comprises the deciduous azaleas, and Tsutsusi, which includes evergreen azaleas. [3]

Modern cladistic analysis, based on nuclear genetics, proposes changes in the classification of species within subgenera. These proposals are based on at least three different studies, with no changes proposed within subgenus Rhododendron and its sections. The major proposed changes are: to make section Choniastrum (originally in subgenus Azaleastrum) a separate Choniastrum subgenus; to combine sections Ponticum, Pentanthera, and the species Rhododendron canadense in subgenus Hymenanthes; subgenus Azaleastrum to include the former subgenera Tsutsusi, Mumeazalea, Candidastrum, and Menziesa, along with former sections Viscidula, Azaleastrum, Sciadorhodion, and the species Rhododendron vaseyi. [4]

A

Rhododendron arboreum Rhododendron in full bloom! (8620051426).jpg
Rhododendron arboreum
Rhododendron atlanticum Rhododendron atlanticum flowers0.jpg
Rhododendron atlanticum
Rhododendron austrinum Rhododendron austrinum 1.jpg
Rhododendron austrinum

B

Rhododendron bureavii Rhododendron bureavii - University of Copenhagen Botanical Garden - DSC07596.JPG
Rhododendron bureavii

C

Rhododendron calendulaceum Rhododendron calendulaceum 1.jpg
Rhododendron calendulaceum
Rhododendron canadense Rozanecznik kanadyjski Rhododendron canadense RB.JPG
Rhododendron canadense
Rhododendron capitatum Rhododendron capitatum - Arnold Arboretum - DSC06640.JPG
Rhododendron capitatum

D

Rhododendron decorum Rhododendron decorum - RHS Garden Harlow Carr - North Yorkshire, England - DSC01277.jpg
Rhododendron decorum
Rhododendron degronianum Rhododendron degronianum - University of Copenhagen Botanical Garden - DSC07548.JPG
Rhododendron degronianum

E

F

Rhododendron ferrugineum Rhododendron ferrugineum.JPG
Rhododendron ferrugineum
Rhododendron fuyuanense Rhododendron fuyuanense - Kunming Botanical Garden - DSC03148.JPG
Rhododendron fuyuanense

G

Rhododendron groenlandicum Rhododendron groenlandicum.jpg
Rhododendron groenlandicum

H

Rhododendron hippophaeoides Rhododendron hippophaeoides var. hippophaeoides.(4x3).jpg
Rhododendron hippophaeoides
Rhododendron hyperythrum Rhododendron hyperythrum - San Francisco Botanical Garden - DSC09958.JPG
Rhododendron hyperythrum

I

Rhododendron impeditum Rhododendron impeditum - University of Copenhagen Botanical Garden - DSC07498.JPG
Rhododendron impeditum

J

K

L

Rhododendron luteum Rhododendron luteum (flower2).jpg
Rhododendron luteum

M

Rhododendron maximum Rhododendron maximum.jpg
Rhododendron maximum
Rhododendron moulmainense Rhododendron moulmainense 3.jpg
Rhododendron moulmainense

N

O

Rhododendron occidentale Rhododendron occidentale Strybing.jpg
Rhododendron occidentale

P

Rhododendron periclymenoides Rhododendron periclymenoides, Kentucky.jpg
Rhododendron periclymenoides
Rhododendron prunifolium Plumleaf Azalea.jpg
Rhododendron prunifolium

Q

R

S

Rhododendron schlippenbachii Rhododendron schlippenbachii.jpg
Rhododendron schlippenbachii
Rhododendron spinuliferum Rhododendron spinuliferum -1.jpg
Rhododendron spinuliferum

T

Rhododendron tomentosum Rhododendron tomentosum1236.JPG
Rhododendron tomentosum

U

V

Rhododendron vaseyi Rhododendron vaseyi 2013 037.JPG
Rhododendron vaseyi

W

Rhododendron wadanum Rhododendron wadanum - Flickr - odako1 (3).jpg
Rhododendron wadanum

X

Y

Rhododendron yedoense var. poukhanense Rhododendron yedoense var poukhanense 1.jpg
Rhododendron yedoense var. poukhanense

Z

Related Research Articles

<i>Buddleja</i> Genus of flowering plants

Buddleja is a genus comprising over 140 species of flowering plants endemic to Asia, Africa, and the Americas. The generic name bestowed by Linnaeus posthumously honoured the Reverend Adam Buddle (1662–1715), an English botanist and rector, at the suggestion of Dr. William Houstoun. Houstoun sent the first plants to become known to science as buddleja to England from the Caribbean about 15 years after Buddle's death. Buddleja species, especially Buddleja davidii and interspecific hybrids, are commonly known as butterfly bushes and are frequently cultivated as garden shrubs. Buddleja davidii has become an invasive species in both Europe and North America.

<i>Cotoneaster</i> Genus of flowering plants

Cotoneaster is a genus of flowering plants in the rose family, Rosaceae, native to the Palaearctic region, with a strong concentration of diversity in the genus in the mountains of southwestern China and the Himalayas. They are related to hawthorns (Crataegus), firethorns (Pyracantha), photinias (Photinia), and rowans (Sorbus).

<i>Anaphalis</i> Genus of flowering plants

Anaphalis is a genus of herbaceous and woody flowering plants within the family Asteraceae, whose members are commonly known by the name pearl or pearly everlasting. There are around 110 species with the vast majority being native to central and southern Asia. There is one species native to North America that is fairly well known and popular in cultivation, namely the western pearly everlasting.

<i>Cremanthodium</i> Genus of flowering plants

Cremanthodium is a large genus of flowering plants in the daisy family.

Briggsia was a genus in the family Gesneriacae that consisted of 22 species of herbaceous perennials, native to the Himalayas, China and Vietnam. The genus is no longer recognized, with all of its member species having been relocated to other genera, including Glabrella, Loxostigma, and Oreocharis.

<i>Rhododendron alutaceum</i> Species of plant

Rhododendron alutaceum is a species of flowering plant in the family Ericaceae. It is native to Tibet and southwestern China, where it grows at altitudes of 3,200–4,300 m (10,500–14,100 ft). This evergreen shrub that grows to 1.5–4 m (4.9–13.1 ft) in height, with thick, leathery leaves that are oblong and broadly lanceolate to lanceolate or narrowly oblong, 5–14 by 1.5–3.5 cm in size. The flowers are white to pink, with crimson spots and purplish-red basal blotch.

<i>Elsholtzia</i> Genus of plants

Elsholtzia is a plant genus in the Lamiaceae. It is widespread across much of temperate and tropical Asia from Siberia south to China, Northeastern India, Indonesia, etc. The genus was named in honour of the Prussian naturalist Johann Sigismund Elsholtz.

  1. Elsholtzia amurensisProb. - Amur region of Russia
  2. Elsholtzia angustifolia(Loes.) Kitag. - Korea, Manchuria
  3. Elsholtzia argyiH.Lév. - southern China, Vietnam
  4. Elsholtzia beddomeiC.B.Clarke ex Hook.f. - Myanmar, Thailand
  5. Elsholtzia blanda(Benth.) Benth. - southern China, Himalayas, Indochina, Sumatra, Viet Nam
  6. Elsholtzia bodinieriVaniot - Guizhou, Yunnan
  7. Elsholtzia byeonsanensisM.Kim - South Korea
  8. Elsholtzia capituligeraC.Y.Wu - Tibet, Sichuan, Yunnan
  9. Elsholtzia cephalanthaHand.-Mazz. - Sichuan
  10. Elsholtzia ciliata(Thunb.) Hyl. - widespread across Siberia, Russian Far East, China, India, Himalayas, Japan, Korea, Indochina
  11. Elsholtzia communis(Collett & Hemsl.) Diels - Myanmar, Thailand, Vietnam
  12. Elsholtzia concinnaVautier - Nepal, Sikkim, Bhutan
  13. Elsholtzia cyprianii(Pavol.) C.Y.Wu & S.Chow - central + southern China
  14. Elsholtzia densaBenth. - India, Pakistan, Nepal, Bhutan, Afghanistan, Kyrgyzstan, Tajikistan, Tibet, Xinjiang, China, Mongolia
  15. Elsholtzia eriocalyxC.Y.Wu & S.C.Huang - southern China
  16. Elsholtzia eriostachya(Benth.) Benth. - China, Tibet, Himalayas
  17. Elsholtzia feddeiH.Lév - China, Tibet
  18. Elsholtzia flavaBenth. - China, Himalayas
  19. Elsholtzia fruticosa(D.Don) Rehder - China, Himalayas, Tibet, Myanmar
  20. Elsholtzia glabraC.Y.Wu & S.C.Huang - China
  21. Elsholtzia griffithiiHook.f - Myanmar, Assam
  22. Elsholtzia hallasanensisY.N.Lee - Jeju-do Island in Korea
  23. Elsholtzia heterophyllaDiels - Yunnan, Myanmar
  24. Elsholtzia hunanensisHand.-Mazz. - southern China
  25. Elsholtzia kachinensisPrain - southern China, Myanmar, Thailand
  26. Elsholtzia litangensisC.X.Pu & W.Y.Chen - Sichuan
  27. Elsholtzia luteolaDiels - Sichuan, Yunnan
  28. Elsholtzia minimaNakai - Jeju-do Island in Korea
  29. Elsholtzia myosurusDunn - Sichuan, Yunnan
  30. Elsholtzia nipponicaOhwi - Japan
  31. Elsholtzia ochroleucaDunn - Sichuan, Yunnan
  32. Elsholtzia oldhamiiHemsl. - Taiwan
  33. Elsholtzia pendulifloraW.W.Sm - Yunnan, Thailand, Vietnam
  34. Elsholtzia pilosa(Benth.) Benth. - China, Himalayas, Myanmar, Vietnam
  35. Elsholtzia pubescensBenth. - Java, Bali, Lombok, Timor, Sulawesi
  36. Elsholtzia pygmaeaW.W.Sm. - Yunnan
  37. Elsholtzia rugulosaHemsl - southern China, Myanmar, Thailand
  38. Elsholtzia serotinaKom - northern China, Japan, Korea, Primorye
  39. Elsholtzia soulieiH.Lév. - Sichuan, Yunnan
  40. Elsholtzia splendensNakai ex F.Maek. - China, Korea
  41. Elsholtzia stachyodes(Link) Raizada & H.O.Saxena - Indian Subcontinent, China, Myanmar
  42. Elsholtzia stauntoniiBenth. - northern China
  43. Elsholtzia strobilifera(Benth.) Benth. - China, Himalayas, Myanmar
  44. Elsholtzia winitianaCraib - Yunnan, Guangxi, Laos, Thailand, Vietnam
<i>Rhododendron argyrophyllum</i> Species of plant

Rhododendron argyrophyllum (银叶杜鹃) is a species of flowering plant in the heath family Ericaceae. It is native to forested slopes at 1,600–2,300 m (5,200–7,500 ft) in E and NW Guizhou, S and W Sichuan, and NE Yunnan in China.

<i>Rhododendron rigidum</i> Species of plant

Rhododendron rigidum (基毛杜鹃) is a rhododendron species native to Sichuan and Yunnan, China, where it grows at altitudes of 2,000–3,400 m (6,600–11,200 ft). Growing to 1–2 m (3.3–6.6 ft) in height, it is an evergreen shrub with leaves that are elliptic, oblong elliptic, oblong-lanceolate or oblanceolate, 2.5–6.8 by 1–3.2 cm in size. The flowers are white to reddish purple.

<i>Rhododendron selense</i> Species of plant

Rhododendron selense (多变杜鹃) is a rhododendron species native to southwestern Sichuan, eastern Xizang, and western Yunnan in China, where it grows at altitudes of 2,700–4,000 m (8,900–13,100 ft). It is an evergreen shrub that grows to 1–2 m (3.3–6.6 ft) in height, with leaves that are oblong-elliptic or obovate to elliptic, 4–8 by 2–4 cm in size. The flowers are pink.

<i>Rhododendron uvariifolium</i> Species of plant

Rhododendron uvariifolium (紫玉盘杜鹃) is a rhododendron species native to southwestern Sichuan, southeastern Xizang, and northwestern Yunnan in China, where it grows at altitudes of 2,100–4,000 m (6,900–13,100 ft). It is an evergreen shrub or tree growing to 2–10 m (6.6–32.8 ft) in height, with leathery leaves that are oblanceolate to oblong-oblanceolate or obovate, 11–24 by 3.5–6.5 cm in size. Flowers are white, pink, or rose, with crimson basal blotch and purple spots.

<i>Rhododendron vernicosum</i> Species of plant

Rhododendron vernicosum (亮叶杜鹃) is a rhododendron species native to western Sichuan, southeastern Xizang, and western Yunnan, China, where it grows at altitudes of 2,600–4,300 m (8,500–14,100 ft). It is an evergreen shrub typically growing to 1–5 m (3.3–16.4 ft) in height, with leathery leaves that are oblong-ovate to oblong-elliptic, and 5–12.5 × 2.3–4.8 cm in size. The flowers are somewhat fragrant, and pale pink or white.

<i>Rhododendron calophytum</i> Species of flowering plant

Rhododendron calophytum, the beautiful-face rhododendron, is a species of flowering plant in the heath family Ericaceae that is native to the forests of central and eastern China, where it lives at altitudes of 1,400–4,000 m (4,600–13,100 ft). Growing to 12 m (39 ft) tall and 8 m (26 ft) broad, it is a substantial evergreen shrub. The leathery leaves are narrow and up to 30 cm (12 in) long. In early Spring trusses of bell-shaped, white or pale pink flowers, spotted with maroon inside, are produced.

References

  1. Harold E. Greer (1996). Greer's guidebook to available rhododendrons: species & hybrids. Offshoot Publications. ISBN   978-0-910013-06-2 . Retrieved 8 November 2012.
  2. Roger V. Jean; D. Barabé (1998). Symmetry in Plants. World Scientific. pp. 6–. ISBN   978-981-02-2621-3 . Retrieved 8 November 2012.
  3. 1 2 Irving, E.; R. Hebda (1993). "Concerning the Origin and Distribution of Rhododendrons". Journal of the American Rhododendron Society. American Rhododendron Society. Retrieved 4 November 2012.
  4. 1 2 Goetsch, Loretta; Eckert, Andrew J.; Hall, Benjamin D. (July–September 2005). "The molecular systematics of Rhododendron (Ericaceae): a phylogeny based upon RPB2 gene sequences". Systematic Botany . 30 (3): 616–626. doi:10.1600/0363644054782170. S2CID   51949019.
  5. "Genus Rhododendron Taxonomic Tree". American Rhododendron Society. Retrieved 4 November 2012.
  6. 1 2 3 4 "Rhododendron". Flora Europaea . Royal Botanic Garden Edinburgh . Retrieved November 5, 2012.
  7. "A New Species of Rhododendron Subgenus Vireya from Papua, Indonesia". Novataxa. Retrieved 11 February 2019.