What is the uses of Rhododendron arboreum?
The stem wood of R. arboreum is used as fuel and various wooden products such as handles, packsaddles and gift-boxes are made from it26-28. The beautiful flowers are used in decorations of houses, due to their sweet-sour taste, they are raw eaten or made into chutneys or juice29.
What is the national flower of Nagaland?
Rhododendron arboreum Sm.
Rhododendron arboreum Sm. State Flower: Nithu (Angami); Lindai (Mao). Botanical Name: Rhododendron arboreum Sm.
What is the biggest Rhododendron?
the big tree rhododendron
IUCN Conservation Status As suggested by its name, the big tree rhododendron is a giant, reaching up to 30m in height and around 1m in diameter – the largest rhododendron in the world. Like many rhododendrons, it boasts large, attractive flowers.
Which district of Nepal hosts the largest Rhododendron in the world?
Tinjure–Milke–Jaljale (TMJ) area, the largest Rhododendron arboreum forest in the world, an emerging tourist area and located North-East part of Nepal.
Are rhododendron poisonous to humans?
Rhododendron toxicity is rarely fatal to humans, and symptoms usually last no more than 24 hours. It results in short-term gastrointestinal and cardiac problems, and the severity depends on the amount of honey or nectar ingested.
Can we eat rhododendron?
Ingestion of the “mad honey” is not the only way people have been poisoned by azaleas and rhododendrons. Eating the leaves, nectar, or flowers of the plants can also lead to toxicity. Although rare, serious and life-threatening toxicity has occurred when people intentionally ate the plant.
Why is Rhododendron famous?
Rhododendron, a most famous horticulture plant, has become one of the most popular plants in the gardens and as avenue trees [9] and has also been widely cultivated in different parts of the world due to its ethnical uses, commercial and medicinal values.
What is Rhododendron called in India?
In India it is the state tree of Uttarakhand and state flower of Nagaland….
| Rhododendron arboreum | |
|---|---|
| Species: | R. arboreum |
| Binomial name | |
| Rhododendron arboreum Sm. |
Which rhododendrons grow the fastest?
Many rhododendron plants grow from 3 to 4 feet in 10 years, but some can grow up to 7 feet in 10 years. Some of the fastest growing rhododendrons are the Brittenhill Bugle, R. genestierianum, Ilam Cream, Mother of Pearl, Professor Hugo de Vries, Spicy Nutmeg, and the Whidbey Island.
Why do bees like rhododendrons?
Rhododendron, bees and toxins Rhododendron are insect pollinated and produce large amounts of sugar-rich nectar to ‘reward’ visiting pollinators. A number of species of bees are known to pollinate rhododendron, including honey bees.
How poisonous is rhododendron?
Nausea, salivation, vomiting, weakness, dizziness, difficulty in breathing, loss of balance. 100 to 225 grams of azalea (Rhododendron occidentale) leaves must be eaten to seriously poison a 55 lb child. Andromedotoxins (grayanotoxins) are water-soluble diterpenoid compounds.
Is Rhododendron arboreum endangered?
arboreum is under vulnerable stage (Singh et al., 2003) [53] . According to the Red list of Rhododendrons 2 species has been extinct, 36 are critically endangered, 39 are endangered, 241 are vulnerable and 290 are near threatened. Seed Germiability, viability and longevity of Rhododendron arboreum var.
What time of year is best to plant rhododendrons?
When to plant:
- Mild climates: Can be planted year-round.
- Cold climates: Early spring planting is best, with early fall planting a good second choice.
- Hot climates: Fall planting allows the plant’s root system to establish during the cooler months.
Where is Rhododendron arboreum found?
Rhododendron arboreum. Jump to navigation Jump to search. Rhododendron arboreum, the tree rhododendron, also known as Burans or Laligurans or simply Gurans (Nepali: गुराँस) in Nepal, is an evergreen shrub or small tree with a showy display of bright red flowers. It is found in Bhutan, China, India, Myanmar, Nepal, Sri Lanka, Pakistan and Thailand.
What is the indumentum of R arboreum?
R. arboreum var. campbelliae (Hook, f.) Hook. f. – In typical R. arboreum the indumentum is a thin silvery felt that covers the lateral veins and minor reticulations but, these being prominent, does not actually obscure them; also the flowers are blood-red, or at least commonly so.
How do you plant a rhododendron arboreum?
Rhododendron arboreum prefers moist but well-drained, leafy, humus-rich, acid pH soil, in dappled shade. It has broad, dark green leaves, 7–19 cm (3–7.5 in) long, with a silvery, fawn or brown hairy coating beneath. This plant is suitable for woodland gardens. Shelter is imperative to prevent wind damage to leaves.
What are the common diseases of Rhododendron?
Rhododendrons are susceptible to vine weevil, rhododendron and azalea whiteflies, leafhoppers, lacebugs, scale insects, caterpillars, aphids, powdery mildew, bud blast, honey fungus, rust, leafy gall, petal blight, silver leaf, phytophthora root rot and lime-induced chlorosis. The plant is known as Maha ratmal, Maha Rath Mal, Asela mal in Sinhala.