Rhododendron Sect. Rhodora (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Rhodora is a section of subgenus Pentanthera in the genus Rhododendron. It comprises two species, both deciduous shrubs native to eastern North America: Rhododendron canadense Rhododendron vaseyi The section is closely related to sect. Pentanthera, differing from it in the flower corolla having only three lobes, rather than five, the upper three lobes of sect. Pentanthera being joined into a single three-lipped lobe in sect. Rhodora. This distinct floral structure resulted in its formerly being treated treated as a distinct genus, but treating it as such results in the remainder of the genus Rhododendron being paraphyletic.