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Rhododendron periclymenoides has low levels of toxicity, and all parts of the plant may cause vomiting or diarrhoea if ingested in quantity. [6] The poisons produced by rhododendrons are known as grayanotoxins, which are a class of neurotoxins. These neurotoxins work by blocking the inactivation of sodium channel receptors, causing cell ...
Rhododendron periclymenoides used to be called Rhododendron nudiflorum. [1] Growing in the form of a shrub, the flowers range in color from white to pink, with no blotches of color on the upper petal. This azalea blooms in the spring in moist wooded areas along streams, thickets, and swamps. [4]
Rhododendron occidentale Torr. & A.Gray 1876: United States(Oregon, California) Rhododendron periclymenoides (Michx.) Shinners 1962 (pink azalea, pinxterbloom azalea, pinxter flower) United States(southern New York south to Georgia) Rhododendron prinophyllum (Small) Millais 1917 (rose azalea, roseshell azalea) Eastern United States
Pages in category "Rhododendron" The following 200 pages are in this category, out of approximately 245 total. ... Rhododendron periclymenoides; Rhododendron ...
Hymenanthes, with approximately 225 species, and subgenus Rhododendron, with approx. 400 species, comprise what gardeners typically describe as "Rhododendrons." Two subgenera are generally known to gardeners as "Azaleas", and include many fewer true species: Pentanthera , which comprises the deciduous azaleas, and Tsutsusi , which includes ...
Rhododendron prinophyllum, the early azalea, [1] is a rhododendron species native to the eastern and southern United States. It is a deciduous shrub that grows 4 to 8 ...
The following is a list of rhododendron cultivars and species which have gained the Royal Horticultural Society's Award of Garden Merit.They are mostly hardy evergreen shrubs with abundant, brilliantly-coloured, trumpet-shaped flowers, often in large spherical trusses.
Rhododendron maximum is a species of Rhododendron native to the Appalachians of eastern North America, from Alabama north to coastal Nova Scotia. Its common names include great laurel , [ 2 ] great rhododendron , rosebay rhododendron , American rhododendron and big rhododendron .