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Uses, Benefits, Cures, Side Effects, Nutrients in Rhododendron Arboreum. Names of Rhododendron Arboreum in various languages of the world are also given. Calyx 5-lobed, often very small. :53 The juice of rhododendron flower is used to make a squash called burans (named after the flower) in the hilly regions of Uttarakhand.  Xiong et al. + , Rhododendron are characterised by having inflorescences with scarious (dry) perulae, a chromosome number of x=13, fruit that has a septicidal capsule, an ovary that is superior (or nearly so), stamens that have no appendages, and agglutinate (clumped) pollen. The ethanolic extract of flowers was used for phytochemical and GC-MS analysis. Corolla not crimson. The discontinued subgenera are Pentanthera, Tsutsusi, Candidastrum and Mumeazalea, while a new subgenus was created by elevating subgenus Azaleastrum section Choniastrum to subgenus rank. Rhododendron arboreum (Tree Rhododendron) is an evergreen shrub or small tree with a showy display of bright red flowers. A number of insects either target rhododendrons or will opportunistically attack them. Stamens 6-8, Corolla greenish-white or pink, saucer-shaped or campanulate. Major diseases include Phytophthora root rot, stem and twig fungal dieback; Ohio State University Extension provides information on maintaining health of rhododendrons. Thus two subgenera, Hymenanthes and Azaleastrum were expanded at the expense of four subgenera that were eliminated, although Azaleastrum lost one section (Choniastrum) as a new subgenus, since it was a distinct subclade in A. Rhododendron, meaning “red tree,” refers to the red flowers and woody growth of some species, but rhododendrons range in habit from evergreen to deciduous and from low-growing ground covers to tall trees. IPNI It is admired for its distinctive flavor and color.. Cullen of the Edinburgh group, placing more emphasis on the lepidote characteristics of the leaves, united all of the lepidote species into subgenus Rhododendron, including four of Sleumer's subgenera (Rhododendron, Pseudoazalea, Pseudorhodorastrum, Rhodorastrum). ... 3600 metres from Pakistan to S.E. Chief amongst these were Maximovicz's Rhododendreae Asiae Orientali and Planchon. They are made into a pasteand then applied to the forehead in the treatment of headaches. ... ( Pakistan ) 06 Apr 2020. Information+photos of hybrids and species. Edible parts of Rhododendron arboreum: The tender leaves are used as a cooked … Seeds minute, numerous. capsule 2-3 cm long Rhododendron arboreumSm. No rhododendron is a national symbol of Pakistan as a whole. Flowers in clusters of 8-15, Corolla yellow, broadly cylindrical. It is the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Stamens exserted Rhododendron hypenanthum Corolla light purple, 2.5-3 cm long. 409. Genus of flowering plants in the heath family Ericaceae, International Code of Botanical Nomenclature, List of Lepidoptera that feed on rhododendrons, List of Award of Garden Merit rhododendrons, List of Sections in Subgenus Rhododendron, "Sorting out the Genus Rhododendron: A Taxonomic Overview of this Large Complex of Species", "GROPING FOR GROUPING: Rhododendron Taxonomy", "The History of Vireya Rhododendron Culture", "Economic history: Farm-gardening and market gardening", "Infrageneric and Sectional Relationships in the Genus Rhododendron (Ericaceae) Inferred from ITS Sequence Data", "Excerpts from and comments on a paper published by: Loretta Goetsch, Andrew Eckert and Benjamin Hall, University of Washington", "Concerning the Origin and Distribution of Rhododendrons", "Dramatic rescue of couple trapped in rhododendron forest", "Maintaining Healthy Rhododendrons and Azaleas in the Landscape", "India has a 'wine country'? An evergreen small tree, up to 10 m tall. Calyx segments orbicular. This genus has been progressively subdivided into a hierarchy of subgenus, section, subsection, and species. Individual hybrids of rhododendrons have been grafted on to a rootstock on a single rhododendron plant that was found growing in a chalk quarry. , The rhododendron is the national flower of Nepal, where the flower is considered edible and enjoyed for its sour taste. 1881. ex. Flowering & Fruiting:March – November. Information on Rhododendrons by Marc Colombel, founder of the Société Bretonne du Rhododendron. Rhododendron arboreum, the national flower of Nepal, is an impressive tree species that grows to be approximately 20 metres tall, and has brilliant red flowers. These scales, unique to subgenus Rhododendron, are modified hairs consisting of a polygonal scale attached by a stalk. Meanwhile, other botanists such as Salisbury (1796) and Tate (1831) began to question the distinction between Azalea and Rhododendron, and finally in 1836, Azalea was incorporated into Rhododendron and the genus divided into eight sections. Alpine Forests Northern Areas (Chitral, Dir and Kohistan) Found on high altitude areas Trees with stunted growth, due to low temperature and less sunlight. km, the place is renowned for being home to Red Panda and Black Bear, the rare Himalayan species. Flowers in dense terminal clusters; pedicels woolly; bracts ovate, covered with dense appressed silky hairs. People have been known to become ill from eating honey made by bees feeding on rhododendron and azalea flowers. The next major attempt at classification was by Sleumer who from 1934 began incorporating the Balfourian series into the older hierarchical structure of subgenera and sections, according to the International Code of Botanical Nomenclature, culminating in 1949 with his "Ein System der Gattung Rhododendron L.", and subsequent refinements. Rhododendron is also the provincial flower of Jiangxi, China and the state flower of Nagaland, the 16th state of the Indian Union. Shrubs. Distribution: Afghanistan, Pakistan. Ovary densely woolly (2008) shown in (parenthetical italics). Don, Rhododendron lepidotumWall. Maximovicz used flower bud position and its relationship with leaf buds to create eight "Sections". Tibet in the Himalayas. Of these Tsutsutsi (Tsutsusi), Pentanthera, Pogonanthum, Ponticum and Rhodora are still used, the other sections being Lepipherum, Booram, and Chamaecistus. It is found in Bhutan, China, India, Myanmar, Nepal, Sri Lanka, Pakistan and Thailand. Rhododendron has about 800 species and is much the largest of all the genera Soc. Rhododendron collettianum giganteum, reported to 30 m (100 ft) tall. The industry is promoted by the state government with tax benefits, looking to promote this industry as a full-fledged subclass of its economy.  Azaleas are frequently used around foundations and occasionally as hedges, and many larger-leafed rhododendrons lend themselves well to more informal plantings and woodland gardens, or as specimen plants. Rhododendron afghanicum Aitch. + List of various diseases cured by Rhododendron Arboreum. The next two smaller subgenera (Pentanthera and Tsutsusi) represent the 'Azaleas'. Flowers in clusters of 8-15 Range of Distribution:It is native to India, distributed throughout the Himalayas, and also found in Bhutan, China, Nepal and Pakistan. Within the brief span that he travelled in Sikkim, he gathered and described 34 new species and details of 43 species including varieties from the Indian region in his … D. Don, Rhododendron hypenanthum Balf, Rhododendron afghanicumAitch.  It was not until 1893 that Koehne appreciated the significance of scaling and hence the separation of lepidote and elepidote species. Stamens 6-8 5 (4) ... UrduPoint Network is the largest independent digital media house from Pakistan, catering the needs of its users since year 1997. Corolla saucer-shaped, tube pilose inside. Illustrations: Journ. They may be either evergreen or deciduous. Larger commercial growers often ship long distances; in the United States, most of them are on the west coast (Oregon, Washington state and California).  Many species and cultivars are grown commercially for the nursery trade. 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