Noun
Certain trees and large shrubs in the family Proteaceae:
Alloxylon flammeum (Queensland waratah)
Carnarvonia araliifolia, of Australia
Grevillea banksii (dwarf silky oak, white silky oak)
Alloxylon wickhamii (syn. Oreocallis wickhamii)
Stenocarpus salignus (Killarney beefwood), of Australia
(uncountable) Wood of any of these trees.
Source: en.wiktionary.org