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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 viscosum is also known as the swamp azalea, catch-fly azalea (due to sticky and glandular hairs), and clammy azalea. [1] Its large land area includes growth on the coastal area of Mississippi, and along the east coast from Florida to Maine. In addition to the coastal areas, the swamp azalea can be found inland in higher elevations.
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
The team of New England Botanic Garden answer your horticultural questions.
Rhododendron (/ ˌ r oʊ d ə ˈ d ɛ n d r ən /; pl.: rhododendra) is a very large genus of about 1,024 species of woody plants and in the heath family (Ericaceae). They can be either evergreen or deciduous.
Geranium maculatum, an Ohio native, is a relative of the common bedding geranium (Pelargonium × hortorum). This list includes plants native and introduced to the state of Ohio, designated (N) and (I), respectively. Varieties and subspecies link to their parent species.
Rhododendron atlanticum is a compact, loosely branched, deciduous shrub that typically grows to be two to three feet tall at maturity but can grow up to six feet, and is two to three feet wide. [3] It is a deciduous shrub 50–150 cm (20–59 in) tall, forming a thick understory in forests, spreading by underground stolons .
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 ...