| 1. | Lower glume of sessile spikelet 3-4.5 mm long; awn up to 2.5 cm long | G. truncatiglumis (NT WA) Sclerandrium truncatiglume |
| Lower glume of sessile spikelet more than 6 mm long; awn more than 2.5 cm long | 2 | |
| 2. | Raceme 1, on an extremely shortened rachis | G. capitata (QLD) G. flosculosa |
| Racemes 2-4, subdigitate to digitate, with each on a well developed rachis | G. grandiflora (NT QLD) Sclerandrium grandiflorum |
Key to Germania derived from Chaianan 1972
Taxonomic name: