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Rhododendron vaseyi, the pinkshell azalea, [4] is a species of flowering plant in the heath family Ericaceae.It is endemic to the Appalachian highlands of North Carolina.The specific epithet vaseyi honors the American plant collector George Richard Vasey and his father Dr. George Vasey, Chief Botanist at the United States Department of Agriculture from 1872 to 1893.
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 ...
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 atlanticum Alfred Rehder, 1921: United States (New Jersey south to Georgia.) Rhododendron austrinum (Small) Rehder 1917: United States (Alabama, Florida, Georgia, and Mississippi) Rhododendron calendulaceum John Torrey, 1824: United States (southern Pennsylvania and Ohio to northern Georgia.) Rhododendron canadense (L.) Torr.
Nova Zembla Rhododendrons growing in a nursery in New Jersey. Like other ericaceous plants, most rhododendrons prefer acid soils with a pH of roughly 4.5–5.5; some tropical Vireyas and a few other rhododendron species grow as epiphytes and require a planting mix similar to orchids. Rhododendrons have fibrous roots and prefer well-drained ...
The Rhododendron Species Foundation and Botanical Garden (RSBG) on 22–24 acres is a nonprofit botanical garden specializing in rhododendrons in Federal Way, Washington. As of 2006 the Foundation's mission is devoted to the conservation, research, acquisition, evaluation, cultivation, public display, and distribution of rhododendron species.
Rhododendron canadense (L.) Torrey.Tourbière du Lac-à-la-Tortue (fr), Quebec, Canada. The wild distribution of the rhodora begins at its easternmost extreme in Canada in Newfoundland and extends into eastern Ontario and the United States, where it has its most famous home in New England and also occurs naturally in New York, New Jersey, and at high altitudes in the Appalachian Mountains ...
Rhododendron calendulaceum, the flame azalea, [3] is a species of Rhododendron. It is a deciduous shrub that grows up to 120–450 cm tall. This species of Rhododendron is native to the Appalachian Mountains in the eastern United States , ranging from southern Pennsylvania and Ohio to northern Georgia .