1. | Awn of upper lemma straight | *H. mollis (NSW VIC TAS) |
Awn of upper lemma hooked | 2 | |
2. | Perennial; glume not or shortly awned | *H. lanatus (NSW VIC TAS SA WA QLD) |
Annual; glumes distinctly awned | 3 | |
3. | Glumes with awns 1-3 mm long | *H. annuus (VIC) H. setosus |
Glumes with awns 3-6 mm long | *H. setiger (WA) | |
Key to Holcus derived from Willis 1970; Tutin 1980
Taxonomic name: