Juncus sp.

A Rush at Molonglo Valley, ACT

Juncus sp. at Molonglo Valley, ACT - 14 Feb 2022
Juncus sp. at Molonglo Valley, ACT - 14 Feb 2022
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Identification history

Juncus sp. 16 Feb 2022 MichaelBedingfield
Juncus sp. 16 Feb 2022 MichaelBedingfield
Juncus australis 15 Feb 2022 sangio7
Juncus usitatus 15 Feb 2022 sangio7

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5 comments

Tapirlord wrote:
   16 Feb 2022
Probably australis, but I agree with Michael, a species ID is too difficult from the photos provided. If you are interested in taking these rushes beyond genus, then ideally photos of the inflorescence (both an up-close general shot, and a shot of how it sprouts from the culm) are required, it is also a good idea to check for leaves (present in a number of local species), and provide information about the height of the plant, the number of flowers per cluster and the nature of culm (glaucous, sub-glaucous, blue, green or brown-colored), etc... There are around 25 local species so it's a lot to get one's head around!!
Tapirlord wrote:
   16 Feb 2022
In saying this, it could just as likely be J.flavidus, J.vaginatus or J.gregiflorus....
   16 Feb 2022
Thanks Ciaran
sangio7 wrote:
   16 Feb 2022
Thanks for that. I guess Michael's verdict was not unexpected. My ID was based on comparison, with the photos of Murray Fagg on the anbg/anh plant image index, of the shape of the infloresceces and how they cluster, from which I narrowed it down to australis and usitatus, with australis being closer.

These rushes and sedges sure are difficult, so it's no surprise there are so few sightings reported in relation to how many there are around this year.
Very frustrating being surrounded by all these different species and not being able to positively ID them. Hopefully I can get my physicist's head around your tips and make a bit more progress before this dry spell we've moved into finishes them off.

On a positive note, I was very pleased with my other sightings yesterday. The spot I was working in was so much better (in diversity and numbers of native plants) than I was expecting in that spot. 27 native species observed and the masses of Tricoryne elatior were a real delight to see. Perhaps our years of weed control there is paying off and certainly my time yesterday was well spent.
Tapirlord wrote:
   16 Feb 2022
It is a good source of photos but worth noting that all local members of the genus are not actually represented (around 10 species missing).

It's a shame really with the rushes and grass being so plentiful this year, but yes ID becomes much harder once we take away the flashy flower haha. Just goes to show the importance of adding field notes to one's sightings. But hopefully, with what I have said in mind we should be able to get a more certain ID next time around.

Glad to hear that Kama and its surroundings are flourishing, the forests and grasslands of Mugga, Red hill, and Farrer ridge nature reserves (on my side of town) are stocked with Eleocharis, Juncus, and Cyperus glorious to see the bush so alive!

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Nearby sightings

Page 1 of 1 - image sightings only

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Juncus vaginatus (Clustered Rush) at The Pinnacle - 22 Nov 2023 by sangio7
Wahlenbergia capillaris (Tufted Bluebell) at The Pinnacle - 14 Nov 2023 by sangio7
Hypericum gramineum (Small St Johns Wort) at The Pinnacle - 13 Nov 2023 by sangio7
Hackelia suaveolens (Sweet Hounds Tongue) at The Pinnacle - 6 Nov 2023 by sangio7
Lomandra filiformis subsp. coriacea (Wattle Matrush) at Belconnen, ACT - 28 Oct 2023 by sangio7
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Juncus subsecundus (Finger Rush) at Belconnen, ACT - 21 Oct 2023 by sangio7
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Wurmbea dioica subsp. dioica (Early Nancy) at Belconnen, ACT - 10 Sep 2023 by sangio7
Lomandra multiflora (Many-flowered Matrush) at Molonglo Valley, ACT - 11 Jun 2023 by sangio7
Hibbertia calycina (Lesser Guinea-flower) at Molonglo Valley, ACT - 10 Jun 2023 by sangio7
Cheilanthes austrotenuifolia (Rock Fern) at Molonglo Valley, ACT - 24 Mar 2023 by pinnaCLE
Convolvulus angustissimus subsp. angustissimus (Australian Bindweed) at Molonglo Valley, ACT - 23 Feb 2023 by sangio7
Solanum linearifolium (Kangaroo Apple) at Molonglo Valley, ACT - 23 Feb 2023 by sangio7
Rhodanthe anthemoides (Chamomile Sunray) at Molonglo Valley, ACT - 17 Dec 2022 by sangio7
Rhodanthe anthemoides (Chamomile Sunray) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Goodenia hederacea subsp. hederacea (Ivy Goodenia, Forest Goodenia) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Vittadinia muelleri (Narrow-leafed New Holland Daisy) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Trifolium arvense (Haresfoot Clover) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Cymbonotus sp. (preissianus or lawsonianus) (Bears Ears) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Hackelia suaveolens (Sweet Hounds Tongue) at Molonglo Valley, ACT - 19 Nov 2022 by sangio7
Luzula densiflora (Dense Wood-rush) at Molonglo Valley, ACT - 25 Sep 2022 by sangio7
Cymbonotus sp. (preissianus or lawsonianus) (Bears Ears) at Molonglo Valley, ACT - 25 Sep 2022 by sangio7
Cryptandra amara (Bitter Cryptandra) at Molonglo Valley, ACT - 4 Sep 2022 by sangio7
Leucochrysum albicans subsp. tricolor (Hoary Sunray) at Molonglo Valley, ACT - 30 Aug 2022 by sangio7
Brachyloma daphnoides (Daphne Heath) at Molonglo Valley, ACT - 30 Aug 2022 by sangio7
Dodonaea viscosa (Hop Bush) at Molonglo Valley, ACT - 30 Aug 2022 by sangio7
Leucochrysum albicans subsp. tricolor (Hoary Sunray) at Molonglo Valley, ACT - 27 Aug 2022 by sangio7
Choreutidae (family) (Metalmark Moths) at Molonglo Valley, ACT - 27 Aug 2022 by sangio7
Lysimachia arvensis (Scarlet Pimpernel) at Molonglo Valley, ACT - 22 Feb 2022 by sangio7
Tricoryne elatior (Yellow Rush Lily) at Molonglo Valley, ACT - 14 Feb 2022 by sangio7
Salsa fuliginata (Sooty Orb-weaver) at Molonglo Valley, ACT - 14 Feb 2022 by sangio7
Cyperus sphaeroideus (Scented Sedge) at Molonglo Valley, ACT - 13 Feb 2022 by sangio7
Tolpis barbata (Yellow Hawkweed) at Molonglo Valley, ACT - 13 Feb 2022 by sangio7
Sherardia arvensis (Field Madder) at Holt, ACT - 3 Oct 2021 by sangio7
Asperula conferta (Common Woodruff) at Molonglo Valley, ACT - 3 Oct 2021 by sangio7
Cyperus sanguinolentus (A Sedge) at Holt, ACT - 12 Dec 2020 by pinnaCLE
Wurmbea dioica subsp. dioica (Early Nancy) at Dunlop, ACT - 15 Oct 2016 by AlisonMilton
Rhodanthe anthemoides (Chamomile Sunray) at Dunlop, ACT - 15 Oct 2016 by AlisonMilton
Lichenomphalia chromacea (Yellow Navel) at Dunlop, ACT - 15 Oct 2016 by Alison Milton
Egernia cunninghami (Cunningham's Skink) at Dunlop, ACT - 12 Dec 2015 by NathanaelC
Acaena echinata (Sheeps Burr) at Dunlop, ACT - 13 Apr 2015 by RussellB
Panicum effusum (Hairy Panic Grass) at Dunlop, ACT - 13 Apr 2015 by RussellB

Location information

Sighting information

  • 16 - 100 Abundance
  • 14 Feb 2022 11:03 AM Recorded on
  • sangio7 Recorded by

Additional information

  • 30cm to 1 metre Plant height

Species information

  • Juncus sp. Scientific name
  • A Rush Common name
  • Not Sensitive
  • Local native
  • Non-invasive or negligible
  • Up to 1642.4m Recorded at altitude
  • 299 images trained Machine learning
  • In flower

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
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