Isolepis subtilissima
Dwarf Clubsedge at Bolaro, NSW
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| Isolepis subtilissima | MichaelMulvaney | 16 Feb 2018 | |
| Unverified | DavidMcKay | 2 Feb 2018 |
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User's notes
These plants form a dense lawn like mass over a square metre or so of boggy soil in a creek bed. Erect stems appear to have a flower bud near the tip. Could this be Limosella?
6 comments
7 Feb 2018
You amaze me! It does look like a sedge. The stems are only a fraction of a mm wide - too small to see the shape but they feel triangular when rolled between fingers. There is a single report of Isolepis platycarpa in the Canberra Nature Map and this looks similar to what I saw. The Vicflora Key quickly lost me. I brought back a small plug hoping the flowers would open further for photographs but I think I will take it to the ANBG tomorrow.
8 Feb 2018
This is an Isolepis, though I couldn't say which one. It resembles Isolepis inundata, though this appears smaller and the triangular stems sound a bit different. Could be platycarpa, it's definitely small and dense enough.
16 Feb 2018
I took a sample to the ANBG on Feb 7th. We might get a definitive ID in due course
17 Feb 2018
We Have a reply from Dave Albrecht , CSIRO. I have copied his response for information so we have an ID. I have replied to Dave's email to thank him for his help.
Thanks for sending in the sedge specimen for identification.
It keys out nicely to Isolepis subtilissima based on the extensive underground stems, and spikelets with 3 style arms, 1 stamen and an unequally 3-angle fruit. Further information on the species can be found at http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Isolepis~subtilissima The material was good so I have pressed some and will incorporate the dried specimen into our collection.
All the best, Dave
Thanks for sending in the sedge specimen for identification.
It keys out nicely to Isolepis subtilissima based on the extensive underground stems, and spikelets with 3 style arms, 1 stamen and an unequally 3-angle fruit. Further information on the species can be found at http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Isolepis~subtilissima The material was good so I have pressed some and will incorporate the dried specimen into our collection.
All the best, Dave
Location information
- Coordinates 148.794582-35.946171
- Places Bolaro, NSW
Sighting information
- 1,001 - 10,000 Abundance
- 30 Jan 2018 11:46 AM Recorded on
- DavidMcKay Recorded by
Collections
- DavidMcKay Canberra & Southern Tablelands NatureMapr Rushes, Sedges & Mat Rushes Plants Isolepis subtilissima
Species information
- Isolepis subtilissima Scientific name
- Dwarf Clubsedge Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- 564.38m to 1644.54m Recorded at altitude
- External link More information
Record quality
Quality score
5 / 7
- Images or audio
- More than one media file
- Verified by an expert moderator
- GPS evidence of location
- Description
- Nearby sighting(s) of same species
- Additional attributes