Glossostigma Wight & Arn. ex Arn.

Calyx smooth with 3–4 unequal lobes. Stoloniferous herb with clustered leaves Glossostigma
Plants glabrous. Leaves oblanceolate to oblong, to 20 mm long and 3 mm wide. Pedicels c. 0.5 mm long. Calyx 3-lobes. Corolla rudimentary. Stamens 2. Stigma lobe narrow-elliptic. Ephemeral herbs sometimes mat forming. Uncommon. Creek beds, swamp margins, river flats. Fl. spring Glossostigma cleistanthum
Plants sparsely hairy. Leaves obovate to elliptic, 6–20 mm long up to 3 mm wide. Pedicels 1–12 mm long. Calyx 4-lobed. Corolla c. 3 mm long, blue. Stamens 4. Stigma lobe broad. Perennial herbs forming mats. Uncommon. River flats or swamps margins. Fl. summer-autumn Glossostigma elatinoides