R. quinquefolium forma speciosum





subgenus Pentanthera
section Sciadorhodion

 
Main features of the section :

Corolla zygomorphic, not 2-lipped, the outer surface glabrous. Stamens 10. Seeds lacking tails and a wing-like fringe, the coat tightly appressed to seed body.
 

Rhododendron albrechtii
Rhododendron pentaphyllum var. pentaphyllum
Rhododendron pentaphyllum var. shikokianumum
Rhododendron quinquefolium forma quinquefolium
Rhododendron quinquefolium forma speciosum
Rhododendron schlippenbachii



SEE THE WHOLE 1998 CLASSIFICATION


 
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