| 1. | Perennial; glumes unawned | *P. viridis (NSW VIC TAS SA) Agrostis semiverticillata, A. viridis, Polypogon semiverticillatus |
| Annual; glumes awned | 2 | |
| 2. | Lemma awnless | *P. maritimus susp. subspaceus (NSW TAS SA WA) |
| Lemma awned | 3 | |
| 3. | Glumes (without awns) c. 2mm long | *P. monspeliensis (NSW VIC TAS NT SA WA QLD) |
| Glumes (without awns) c. 4.5mm long | P. tenellus (WA) |
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Dichotomous Keys
- Introduction
- Key to Genera
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Panicum
- Paractaenum
- Paraneurachne
- Parapholis
- Paspalidium
- Paspalum
- Pentameris
- Pentapogon
- Periballia
- Perotis
- Phalaris
- Pheidochloa
- Phleum
- Pholiurus
- Phragmites
- Phyllostachys
- Piptatherum
- Piptochaetium
- Plagiosetum
- Plinthanthesis
- Poa
- Pogonatherum
- Polypogon
- Polytrias
- Potamophila
- Psammagrostis
- Pseudochaetochloa
- Pseudopogonatherum
- Pseudoraphis
- Psilurus
- Puccinellia
- R
- S
- T
- U
- V
- W
- XY
- Z