We have carried out a polyphasic taxonomic characterization of
Bacillus beijingensis
DSM 19037T and
Bacillus ginsengi
DSM 19038T, which are closely related phylogenetically to
Bhargavaea cecembensis
LMG 24411T. All three strains are Gram-stain-positive, non-motile, moderately halotolerant and non-spore-forming. 16S rRNA gene sequence analyses showed that the strains constituted a coherent cluster, with sequence similarities between 99.7 and 98.7 %. The percentage similarity on the basis of amino acid sequences deduced from partial gyrB gene nucleotide sequences of these three type strains was 96.1–92.7 %. Phylogenetic trees based on the 16S rRNA gene and GyrB amino acid sequences, obtained by using three different algorithms, were consistent and showed that these three species constituted a deeply rooted cluster separated from the clades represented by the genera
Bacillus
,
Planococcus
,
Planomicrobium
,
Sporosarcina
,
Lysinibacillus
,
Viridibacillus
,
Kurthia
and
Geobacillus
, supporting their placement in the genus
Bhargavaea
. All three type strains have menaquinone MK-8 as the major respiratory quinone and showed similar fatty acid profiles. The main polar lipids present in the three type strains were diphosphatidylglycerol and phosphatidylglycerol, and the three strains showed peptidoglycan type A4α with l-lysine as the diagnostic diamino acid. The DNA G+C contents of
Bacillus beijingensis
DSM 19037T,
Bacillus ginsengi
DSM 19038T and
Bhargavaea cecembensis
LMG 24411T were 53.1, 50.2 and 53.7 mol%, respectively. The level of DNA–DNA hybridization among the three strains was 57–39 %, indicating that they are members of different species of the genus
Bhargavaea
. The phenotypic data are consistent with the placement of these three species in a single genus and support their differentiation at the species level. On the basis of these data, we have emended the description of the genus
Bhargavaea
and propose the reclassification of
Bacillus beijingensis
and
Bacillus ginsengi
to the genus
Bhargavaea
, as Bhargavaea beijingensis comb. nov. (type strain ge10T = DSM 19037T = CGMCC 1.6762T) and Bhargavaea ginsengi comb. nov. (type strain ge14T = DSM 19038T = CGMCC 1.6763T).