Rhododendron augustinii Hemsl., J. Linn. Soc., Bot. 26(173): 19–20 1889. (syn: Azalea augustinii (Hemsl.) Kuntze; Rhododendron vilmorinianum Balf.f.);
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Tibet to Central China: China North-Central, China South-Central, Tibet as per POWO;
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Rhododendron augustinii from UCBG-GS28082021-1: 3 images.
A Chinese plant grown in University of California Botanical Garden, clicked on 21-4-2019.
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References: POWO Catalogue of Life The Plant List Ver.1.1 Tropicos IPNI