An aerobic, Gram-stain-positive actinomycete, designated strain 3SM4-07^T, was characterized using a polyphasic taxonomic approach. The strain produced branching mycelium which fragmented into short or elongated rods. The whole-cell hydrolysates contained ll-2,6-diaminopimelic acid as the diagnostic diamino acid, with glucose and ribose as the main sugars. The predominant cellular fatty acids were anteiso-C_{15 : 0}, iso-C_{15 : 0} and iso-C_{16 : 0}.The predominant menaquinone was MK-9(H₄). Phospholipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylinositol and phosphatidylinositol mannoside. Mycolic acids were absent. The DNA G+C content was 72.3 mol%. Strain 3SM4-07^T formed a phylogenetic line within the genus Jiangella and its 16S rRNA gene sequence was related most closely to Jiangella alkaliphila D8-87^T (99.0 % similarity), Jiangella muralis 15-Je-017^T (98.8 %), Jiangella alba YIM 61503^T (98.6 %) and Jiangella gansuensis YIM 002^T (98.6 %). However, mean DNA–DNA hybridization values revealed that strain 3SM4-07^T differed from the closest species previously described in this genus. Data from phenotypic, chemotaxonomic and molecular analyses between strain 3SM4-07^T and recognized species of the genus Jiangella indicate that strain 3SM4-07^T is a representative of a novel species of the genus Jiangella, for which the name Jiangella mangrovi sp. nov. is proposed. The type strain is 3SM4-07^T ( = BCC 60398^T = NBRC 109648^T).