Azaleastrum Candidastrum Hymenanthes Mumeazalea Pentanthera (Azaleas) Rhododendron Therorhodion Tsutsusi (Azaleas)

Rhododendron (from either a Greek: rhodos, "rose"; dendron, "tree") is a genus of flowering plants in the personal Ericaceae. This is such a big genus that the plants come organised by subgenus, part, subdivision & series. These subgenera may be in essence divided into foursome groups: Subgenus Rhododendron: little leaf or even lepidotes (sustaining scales on the undersurface of their leaves). Nature and severity: Rhododendron ferrugineum L. Subgenus Hymenanthes: big leaf or even elepidotes (while forgoing scales on the bottom of their leaves). Nature and severity: Rhododendron degronianum Carr. evergreen azaleas deciduous azaleas.

Rhododendron occurs as super cosmopolitan genus, however the major concentration of diversity occurs in the Sino-Himalayan mountains of southeast Asia from central Nepal and Sikkim east to Yunnan and Sichuan, with more important areas of diversity in the mountains of Indo-China, Korea, Japan and Taiwan.

Many metal money besides occur within North America and a few within Europe, and occasionally tropical metal money occur when far south when Borneo and New Guinea. It develop swell inside acid soil, & come noted for their numbers of clusters of big trumpet-shaped blooms and their glossy prolate leaves. Virtually all rhododendrons flower for exclusively the brief period of period every season, however in the period of that time it provide the stunning display of assembled colour.

A Rhododendron is the national flower of Nepal. These are likewise a state flower of the US states of Washington and West Virginia, and a state of Sikkim in India.

There are above 25,000 cultivars of Rhododendron. These own been bred to use at times big or even little flowers, & the immense array of flower petal colours. An case of the cultivar popular in the US is Rhododendron 'President Roosevelt'.

Rhododendrons have a toxin called grayanotoxin in their pollen and nectar. Humans stand been known to get ailment from either eating honey made by bees feeding on rhododendron & azalea flowers. Completely area of the rhododendron come poisonous to horses, especially the leaves.

A big natural rhododendron garden within the globe is in Bakersville, North Carolina in the USA. A garden is placed on the top of Roan Mountain state park.

One of a big, around case non a largest, collection of cultivated rhododendrons, is in Dunedin, New Zealand, where its temperate climate is well suited. A city hosts an annual Rhododendron Festival (http://www.rhododunedin.com/).

In a UK, the rhododendron is think of an ecological pest due to its aggressive incubation & displacement of native metal money.

Look at likewise: Azalea

Image:rhodo_ss_arborea.jpg|Rhododendron niveum Image:purplerhododendron.jpg|Rhododendron ponticum Image:palepinkrhododendron.jpg|A pink-flowered rhododendron cultivar Image:Rain in the rhododendron leaf.jpg|Rhododendron leaf