Bulbophyllum weinthalii, commonly known as the wax orchid, is a species of epiphytic orchid that forms dense clumps on hoop pine (Araucaria cunninghamii). It has crowded pseudobulbs each with a single thin, leathery, dark green leaf and a single white, green or cream-coloured flower with red or purplish markings. It occurs from south-eastern Queensland to Dorrigo National Park in New South Wales.

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