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A novel Gram-positive-staining actinomycete designated strain GMKU095^T was isolated from surface-sterilized roots of Acacia auriculiformis A. Cunn. ex Benth. (earpod wattle). The organism produced branching mycelium. The spores were non-motile and had a spiny surface. Growth of strain GMKU095^T occurred at 18–42 °C, pH 5.0–8.0 and at NaCl concentrations up to 5 %. Whole-cell hydrolysates contained arabinose and galactose as major characteristic sugars. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. The glycan moiety of the murein contained acetyl residues. The menaquinone was MK-8(H₄); mycolic acids were not detected. The G+C content of the DNA was 71.6 mol%. iso-C_16 : 0 was detected as the major cellular fatty acid. Comparative studies of 16S rRNA gene sequences indicated that the strain was phylogenetically related to members of the genus …