Rhododendron sect. Pentanthera
| Pentanthera | |
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| Rhododendron luteum | |
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| Section: | Pentanthera |
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Rhododendron sect. Pentanthera is a section of subgenus Pentanthera in the genus Rhododendron. It comprises 15-16 species of deciduous shrubs native to temperate regions of the Northern Hemisphere.
It includes two subsections:
- Pentathera
- Sinensia
Subsection Pentanthera (16 species)
- Selected species
- Rhododendron alabamense
- Rhododendron arborescens
- Rhododendron atlanticum
- Rhododendron austrinum
- Rhododendron calendulaceum
- Rhododendron canescens
- Rhododendron colemanii
- Rhododendron cumberlandense
- Rhododendron eastmanii
- Rhododendron flammeum
- Rhododendron luteum
- Rhododendron occidentale
- Rhododendron periclymenoides
- Rhododendron prinophyllum (rose azalea, roseshell azalea)
- Rhododendron prunifolium
- Rhododendron viscosum (Swamp azalea)
Subsection Sinensia (1 species)
- Selected species
- Rhododendron molle (syn. R. japonicum)
The section is closely related to sect. Rhodora, differing from it in the flower corolla having five fully developed lobes, whereas sect. Rhodora has the upper three lobes joined into a single three-lipped lobe.
Cultivation
Most (but not all) of the cultivated azaleas belong to species in this section, and hybrids derived from them.
References
- Germplasm Resources Information Network: Rhododendron sect. Pentanthera
- Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan.
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