Rhododendron

(redirected from Rhododendrons)
Also found in: Dictionary, Thesaurus, Encyclopedia.

Rhododendron

plant genus in the family Ericaceae; contains andromedotoxin which causes a syndrome of repeated swallowing, bloat, vomiting, abdominal pain and frequent defecation. The course is short and the outcome may be death from aspiration pneumonia or complete recovery. Called also azalea.
The list of toxic plants includes R. albiflorum, R. arboreum, R. campanulatum, R. cinnabarinum, R. indicum, R. macrophyllum (R. californicum, California rose bay), R. maximum (great laurel), R. molle, R. occidentale (western azalea), R. ponticum (horticultural rhododendron).
References in periodicals archive ?
LAST week Amy wanted advice on removing the dead flowers from her rhododendron.
The last two years have seen snow damage to the rhododendrons with branches being snapped off.
Kate Williamson and Rhys Owen, both of Snowdonia National Park Authority, outline the plant's threat to local biodiversity - and how the process of stem injection is being used to tackle the rhododendron menace.
GARDENERS are being invited to a free rhododendron event.
Nowadays, the deciduous azalea is grouped with all other Rhododendrons but as a section called Deciduous Hybrid Azaleas, with all those brilliant yellows and oranges that are often so highly scented.
Remove rhododendron flowers that have passed over, so their energy is not wasted in the production of seed.
I went on a blustery Tuesday, primarily to see the rhododendrons.
Adding to Californians' fears (along with those of horticulturists, plant pathologists, and foresters around the world) was an announcement in January that a disease on rhododendron nursery stock in Santa Cruz County--and a disease on rhododendrons in Germany and The Netherlands--was none other than sudden oak death.
When Sir Joseph Hooker was collecting rhododendron seed in the Himalayas 150 years ago, he remarked that above 12,000 feet in Darjeeling, about three-quarters of all plants were rhododendrons.
Rhododendrons are among the most ancient flowering plants in the world, surviving as everything from ground-hugging miniatures on the highest mountains, to neat shrubs on islands, and towering trees in wilderness forests.
A SCOTS firm is exporting rhododendrons to Holland.