Science & nature
A classy grass showing off right now

Right now many local grasses are looking simply spectacular. I've previously featured the Native Sorghum (S. leiocladum), Basket Grass (Oplismenus sp.), Pygmy Panic (Panicum pygmaeum) and the Love Grasses (Eragrostis species) and they're all doing well.

But this week's standout is the Red-anther Wallaby Grass (or Rytidospermum pallidum), which has been flowering just beautifully.

Even when not in flower, it's a wonderful plant, forming low clumps or tussocks characterised by very fine dull green or grey-green leaves which have a drooping habit.

In ideal conditions it can be quite dominant and cover a large area. It isn't that common in the region, but can be seen growing in good numbers in the Croom Reserve Sporting Complex grounds, home to a substantial remnant of the critically endangered Illawarra Lowlands Grassy Woodland. It also occurs in scattered locations across the coastal plain, including Blackbutt Reserve in Blackbutt.

If I had to describe it to the casual observer, I'd say it looks like a grass that has flopped down to have a rest. 

When not in flower, Red-anther Wallaby Grass is still very pretty, with its long fine grey-green foliage and weeping habit. It can form large groups in suitable conditions. Image by Emma Rooksby.

A distinctive feature of this grass is, as you'd guess from the name, the red anther (male reproductive parts) on the flowers. They're not large but they're a very bright orange-red and dangle conspicuously out of the flowers.

As the flowers develop into fruit, their colour changes to a very pale goldish silver, giving this grass its other common name of Silvertop Wallaby Grass (the scientific name also references this character, with 'pallidum' meaning pale). 

This close-up photo taken by grass expert Harry Rose shows the red anthers clearly. A large group of these grasses, all in flower, is a spectacular sight. Image by Harry Rose, reproduced from Flickr under CC BY 2.0

I've never seen Red-anther Wallaby Grass in a garden or used in landscaping but it would be absolutely perfect for gardens across the coastal plain that used to be home to Illawarra Lowlands Grassy Woodland.

The residential development areas in West Dapto and Calderwood would be ideal to grow this grass. It would rival some of the best known native grasses such as Stout Bamboo Grass (Austrostipa ramosissima) or Tussock Grass (Poa labillardierei).

Imagine how much support we could collectively give to local pollinators and biodiversity if this grass was in the mix in gardens across the Illawarra coastal plain?  

A good-sized stand of Red-anther Wallaby Grass (Rytidosperma pallidum) in flower/fruit. A beautiful mix of colours and textures. Image by Harry Rose, reproduced from Flickr under CC BY 2.0.

Hands up who wants to see more of this grass (and the grassy woodland it calls 'home')?  

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