Rhododendron luteum

Taxobox
name = "Rhododendron luteum"

---

image_width = 240px
image_caption =
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Ericales
familia = Ericaceae
genus = "Rhododendron"
subgenus = "Pentanthera"
sectio = "Pentanthera"
species = "R. luteum"
binomial = "Rhododendron luteum"
binomial_authority = Sweet

"Rhododendron luteum" (Yellow Azalea or Honeysuckle Azalea) is a species of "Rhododendron" native to southeastern Europe and southwest Asia. In Europe, it occurs from southern Poland and Austria south through the Balkans and east to southern Russia, and in Asia, east to the Caucasus.

It is a shrub growing to 3 m tall, rarely 4 m. The leaves are deciduous, 5-10 cm long and 2-4 cm broad. The flowers are 3-4 cm diameter, bright yellow, and strongly perfumed, produced in trusses of 5-25 together. The fruit is a dry capsule 15-25 mm long, containing numerous small seeds.

Despite the sweet perfume of the flowers, the nectar is toxic, containing grayanotoxin; records of poisoning of people eating the honey date back to the 4th century BC in Classical Greece.

Cultivation and uses

It is widely cultivated in western Europe, used both as an ornamental plant in its own right, and as a rootstock onto which other azalea cultivars are grafted. It is locally naturalised in western and northern Europe. In Britain it has colonised many wet heaths and bogs, but unlike its relative "Rhododendron ponticum" it does not usually form dominant stands and so is of lower nature conservation concern.

References

* [http://rbg-web2.rbge.org.uk/cgi-bin/nph-readbtree.pl/feout?FAMILY_XREF=&GENUS_XREF=Rhododendron+&SPECIES_XREF=luteum+&TAXON_NAME_XREF=&RANK= Flora Europaea: "Rhododendron luteum"]
* [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?31428 Germplasm Resources Information Network: "Rhododendron luteum"]
* [http://www.habitas.org.uk/gardenflora/rhodoluteum.htm UK garden flora: "Rhododendron luteum"]
* [http://www.pfaf.org/database/plants.php?Rhododendron+luteum Plants for a Future: "Rhododendron luteum"]
* [http://home.earthlink.net/~rhodyman2/rhodytox.html Rhododendron Poisoning: "Rhododendron luteum"]