Grevillea obtusiflora subsp. obtusiflora and subsp. fecunda are two attractive red-flowering Grevilleas with similar morphology but different ecological strategies, one of which reproduces primarily by vegetative means and the other by both vegetative and sexual means. The taxa are found in the Cudgegong and Capertee valleys north of Lithgow.
The main threats to Grevillea obtusiflora (the collective term for both subspecies) are vehicular access, inappropriate fire regimes and roadside management activities.