Wallaby Grass at Latham, ACT
Identification history
| Rytidosperma fulvum | 22 Jul 2026 | MattM | ||
| Rytidosperma caespitosum | 18 Jul 2026 | Caric |
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User's notes
Long seed stem by far longer than the plant (see last photo of most of the plant, though seedhead had to be taken separately), stem was reddish with knobbly nodes.
Possibly Rytidosperma caespitosum or R. fulvum?
Woodland. Only spotted one.
If this grass can be identified, any advice on distinguishing features appreciated.
2 comments
MattM
wrote:
22 Jul 2026
I believe this is R. fulvum, but it is difficult to say for certain without measurements. R. caespitosum should have three rows of hairs that are better defined than in your image. R. fulvum tends to have scattered hairs between the rows which are not as well defined. The twisted part of the central awn frequently exceeds the top row of hairs in R. caespitosum, but here it appears shorter as in R. fulvum. The body of the lemma should also be oblong in R. caespitosum, but here at least one looks more triangular as in R. fulvum.
The R. fulvum I have observed in Canberra tend to be quite tall (30-50 cm) and have a somewhat triangular shaped inflorescence with branching visible. When I have seen R. caespitosum, the inflorescence has tended to be more cylindrical with branching hidden.
The R. fulvum I have observed in Canberra tend to be quite tall (30-50 cm) and have a somewhat triangular shaped inflorescence with branching visible. When I have seen R. caespitosum, the inflorescence has tended to be more cylindrical with branching hidden.
Location information
- Coordinates 149.026740-35.214918
- Altitude 583.0m
- Maps Umbagong District Park
- Places Latham, ACT
Sighting information
- At least 1 Abundance
- 5 Jul 2026 03:04 PM Recorded on
- Caric Recorded by
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Collections
Caric NatureMapr Canberra & Southern Tablelands Latest Rytidosperma fulvum Grasses Plants
Additional information
- 30cm to 1 metre Plant height
Species information
- Rytidosperma fulvum Scientific name
- Wallaby Grass Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- Up to 683.46m Recorded at altitude
- External link More information
Record quality
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes