- Plants
- ›Vascular Plants
- ›flowering plants
- ›Dicots
- ›Heathers, Balsams, Primroses, and Allies
- ›heath family
- ›typical heathers, azaleas, and allies
- ›Rhodoreae
- ›Rhododendron
- ›Rhododendron

Rhododendron
Rhododendron (; pl.: rhododendra), from Ancient Greek ῥόδον (rhódon), meaning "rose", and δένδρον (déndron), meaning "tree", is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia.
Various species of Rhododendron are the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the state flower of Nagaland and Himachal Pradesh in India, the provincial flower of Jeju Province in South Korea and Jiangxi in China, and the state tree of Sikkim and Uttarakhand in India. Most species have brightly coloured flowers which bloom from late winter through to early summer.
29 branches of this group, most-observed first

Labrador teas
subsectionLedum

Rhododendron
subsectionRhododendron

Rhodorastrum
subsectionRhodorastrum

Subsection Lapponica
subsectionLapponica

Caroliniana
subsectionCaroliniana

Maddenia
subsectionMaddenia

Triflora
subsectionTriflora

Lepidota
subsectionLepidota

Micrantha
subsectionMicrantha
Cinnabarina
subsectionCinnabarina

Scabrifolium
subsectionScabrifolium

Moupinensia
subsectionMoupinensia

Edgworthia
subsectionEdgworthia

Virgatum
subsectionVirgatum

Heliolepida
subsectionHeliolepida

Saluenensia
subsectionSaluenensia

Tephropeplae
subsectionTephropeplae

Glauca
subsectionGlauca

Boothia
subsectionBoothia

Camelliiflora
subsectionCamelliiflora

Trichocladum
subsectionTrichocladum

Campylogyna
subsectionCampylogyna

Uniflora
subsectionUniflora

Baileya
subsectionBaileya

Fragariflora
subsectionFragariflora
Monantha
subsectionMonantha
Genestieriana
subsectionGenestieriana
Afghanica
subsectionAfghanica
Greenland rhododendron
hybridRhododendron × vanhoeffenii
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries

The natural history of Carolina, Florida, and the Bahama Islands : containing two hundred a...
Catesby, Mark, bioloog, kunstenaar · 1743 · p.407

Christoph Jakob Trew — Uitgezochte planten (1771)
Christoph Jakob Trew · 1771 · p.220

Ortus sanitatis
1491 · p.366

Six Groups of the History of Plants
Rembert Dodoens · 1583 · p.860

History of Rare Plants Observed in Pannonia
Carolus Clusius · 1583 · p.79

Compendium of Materia Medica
李時珍 · 1596 · p.107

Collected Illustrations of the Three Realms: Herbs
王圻, 王思義 · 1607 · p.46

The Natural History of Carolina Florida and Bahama Islands Vol. 2
Mark Catesby · 1743 · p.358

Mark Catesby — Piscium, serpentum, insectorum (pt. 2) (1777)
Mark Catesby · 1777 · p.111

Illustrated Compendium of Materia Medica (Vol. 33)
吳其濬 · 1848 · p.39
In the stacks
Searching the stacks…
Every page naming Rhododendron in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 922780.