As classified in WFO snapshot
June 2024
Warning: older classification
variety
Rhododendron orthocladum var. longistylum
This variety name was first published in Notes Roy. Bot. Gard. Edinburgh 34: 44 (1975)
At the time of this classification snapshot, this variety name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-0001386933.