| 1. | Perennial; with non-flowering shoots at anthesis | *P. pratense (NSW VIC TAS SA WA) |
| Annual; without non-flowering shoots at anthesis | 2 | |
| 2. | Glume midnerves hirsute, with short, stiff, spreading hairs above the middle |
*P. arenarium (WA) |
| Glume midnerves glabrous | *P. subulatum (QLD) |
Key to Phleum derived from Tutin 1980
Taxonomic name: