Darwinia macrostegia, commonly known as Mondurup bell,[2] is a species of flowering plant in the family Myrtaceae and is endemic to the south-west of Western Australia.

It is a straggly shrub with elliptic leaves and clusters of pendent flowers surrounded by red and white bracts.

[7] A 1951 newspaper article about "Mondurup", a "long mountain that dominates the western end of the range", described this plant as "The Climber's Badge".

[8] Mondurup bell occurs in and near the Stirling Range National Park in five separate populations, and grows in stony soils on rocky hillsides and in gullies in the Esperance Plains and Jarrah Forest bioregions of south-western Western Australia.

[9] Darwinia macrostegia is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[2] meaning that it is rare or near threatened.