Grasses

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Good references for local grass species:

Fact Sheets from Grasses of Australia

For example, Themeda triandra, Kangaroo Grass

And Rytidosperma, Wallaby Grasses, by species

Grasses

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Announcements

New priority species lists in the ACT

16 Mar 2025

Hello NatureMaprs!Three new priority species lists of exotic freshwater and terrestrial invertebrates, and vertebrates in the ACT have been added to NatureMapr. Uploading records of these species to N...

NatureMapr now receives more records in NSW than ACT

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Discussion

waltraud wrote:

8 hrs ago

Thanks Mike and yes, I just realized by checking Field Maps Treated Weeds records that contractors and Parks staff treated ST close by on the 24 and 26 February 2025; so it is likely they missed this lot.

Nassella trichotoma

Mike wrote:

9 hrs ago

PCS has also done recent mapping of serrated tussock in the area so, fingers crossed, there might be some action next treatment season. :-)

Nassella trichotoma

waltraud wrote:

10 hrs ago

thanks Avery
I mapped and photographed the Serrated Tussock (ST) at this site on the 31 August 2023 and again on the 12 November 2024; I also mapped and photographed ST at adjacent site on 31 August 2023, 1 October 2023 and 12 November 2024. I can't carry a knapsack anymore up the steep slopes and the ST are too numerous and big for me to dig out or to cut by hand and spray with small hand held bottle. I wrote to Parks and Conservation Service / Canberra Nature Park North twice to alert them to this infestation/s. PCS rangers change-over is frequent and rumors are that more staff positions have been cut or will be cut. So the best thing to do is perhaps to write to ACT Government and request adequate resourcing to enable PCS to control highly invasive Weeds of National Significance such as ST. I treated 100s of STs downhill, see for instance https://canberra.naturemapr.org/sightings/4610000. I'm fully aware that the ST infestations uphill, if not controlled, will continue to recruit and lead to new infestations in the surrounds.

Nassella trichotoma

Caric wrote:

Yesterday

Thanks very much for your help in identifying this wallaby grass.
Background: I have a Bradley Method test plot at Umbagong District Park (Latham) to remove St John's Wort. Most people don't use the Bradley Method as it's seen as inefficient and time consuming. However, people also report that methods they usually use don't work (a joint government-landcare / parkcare survey last year). My experience of the Bradley Method is that this is one method that does work for SJW.
The Bradley Method requires you to be able to identify every single plant in the plot as everything non-native is removed, not just SJW. Your ident is therefore very useful, thanks.
In case you're interested, Ginninderra Catchment Group has uploaded the case study on SJW removal using the Bradley Method (now being scaled up), including methods and recording documentation, onto its website: https://ginninderralandcare.org.au/weeding-st-johns-wort-at-umbagong-case-study-resources/

Rytidosperma racemosum

MattM wrote:

24 Mar 2025

This one may need a follow up. Looks like a species of Cenchrus which could either be the native C. purpurascens or problem weed C. longisetus.

Cenchrus longisetus