Cyperus eragrostis
Umbrella Sedge at Hackett, ACT
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| Cyperus eragrostis | waltraud | 15 Mar 2025 |
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User's notes
Umbrella Sedge US appeared after Icon Water dug out old infrastructure which included bonded asbestos and then implemented storm-water infrastructure, outlet and piping, from the Hackett water reservoir. The building rubble was put back into the reserve and mixed with soil. The discharge of water turns the grassy woodland into a swamp with Umbrella Sedge a major weed. Friends of Mt Majura (FoMM) carried out weed control in this area over the past 20 years (St John's Wort, Serrated tussock, Wild Sage, thistles, Hirschfeldia, Cape weed,privets and many more) and direct seeded Speargrass and Redleg Grass. The group also undertook control of a large amount of Umbrella sedge (and of other weeds such as Ivy, Honeysuckle, ....) in the nearby gully / drainage line. The degradation following the implementation of stormwater outlet that discharges water on the surface is devastating!!! Icon Water should rehab the site. Also, inappropriate garden extension planting of Blue Periwinkle behind the backyard of a nearby residence (see https://canberra.naturemapr.org/sightings/4653447) in a swale that runs parallel to the backyards may greatly benefit form the additional water and may over time invade work carried out by FoMM further to the north. First photo view from east to west with residences in the background, 2nd photo view towards east, 3rd photo back-filled soil with building rubble; 4th photo of 20/04/2025 fruiting US.
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Location information
- Coordinates 149.167861-35.245122
- Altitude 640.1m
- Maps Mount Majura
- Places Hackett, ACT
Sighting information
- 16 - 100 Abundance
- 20 Apr 2025 01:29 PM Recorded on
- waltraud Recorded by
Collections
- waltraud NatureMapr Canberra & Southern Tablelands Cyperus eragrostis Rushes, Sedges & Mat Rushes Plants
Species information
- Cyperus eragrostis Scientific name
- Umbrella Sedge Common name
- Not Sensitive
- Exotic
- Medium weed or pest
- Up to 1219.97m Recorded at altitude
- External link More information
Record quality
Quality score
6 / 7
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- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
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