The flowers of Asystasia gangetica subsp. micrantha grow in small clusters, terminally and axillary.

The green buds are narrow and erect, too angular to be cylindrical, showing folds in the elongating corolla. The green colour and lesser size of the calyx contrast more strongly as the corolla develops. Tiny, green bracts are present below the calyx next to the pedicel.

Flowering happens all year round. The fruit is a stalked capsule, laterally flattened and slightly beaked; the brown seeds rough-surfaced (Pooley, 1998; Leistner, (Ed.), 2000; iNaturalist; http://pza.sanbi.org).