| Rank Subgenus | ||
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| Similar Rhododendron subg Pentanthera, Rhododendron leptothrium, Rhododendron albiflorum, Rhododendron vialii | ||
Rhododendron subg. Choniastrum is a subgenus of the genus Rhododendron, originally a section of subgenus Azaleastrum it was elevated to subgenus rank after cladistic analysis revealed that together with Rhododendron it formed a major clade, distinct from other sections of Azaleastrum.
The subgenus includes eleven species, including;
References
Rhododendron subg. Choniastrum Wikipedia(Text) CC BY-SA
