Cenchrus purpurascens

Swamp Foxtail at Parkes, ACT

Request use of media

Identify this sighting

Cenchrus purpurascens MichaelBedingfield 16 May 2025
Cenchrus purpurascens pinnaCLE 16 May 2025
Phragmites australis CarbonAI 16 May 2025
Cenchrus purpurascens pinnaCLE 16 May 2025

Please Login or Register to identify this sighting.

User's notes

An unfortunate choice of species since this is known to be a potential problem in wet areas. The flowers hanging out over the lake would be ideal to drop seed for wide dispersal. Problem magnified by planting being so extensive.

4 comments

   16 May 2025
I agree with your sentiments John.
   16 May 2025
Cenchrus purpurascens is listed in MIS 25 Plant Species for Urban Landscape Projects as a Special Plant (requiring TCCS approval) but management note says it is 'NOT invasive'.
   16 May 2025
The lucid weeds entry for this species says "Swamp foxtail (Cenchrus purpurascens) is sometimes regarded as an environmental weed in Queensland and New South Wales. It is also regarded as an environmental weed in Victoria, and as a potential environmental weed in Tasmania and Western Australia. It has recently become popular as an ornamental grass that is often planted in gardens and amenity areas. As the common name suggests, swamp foxtail (Cenchrus purpurascens) generally invades moist sites such as river flats, swamps, marshes and low-lying pastures." This implies it was unwise to plant hundreds in a strip along the edge of LakeBG.
Also implies that TCCS management note needs modifying to 'NOT invasive except in moist sites'?
   19 May 2025
It has also been planted next to Coombs Ponds and has spread along the edge, See: Cenchrus purpurascens (Swamp Foxtail)

Please Login or Register to comment.

Location information

Sighting information

  • 101 - 1,000 Abundance
  • 9 May 2025 02:38 PM Recorded on
  • pinnaCLE Recorded by
  • 1 metre to 5 metres Plant height
  • Yes Planted

Collections

Species information

Record quality

Quality score 5 / 7
  • Images or audio
  • More than one media file
  • Verified by an expert moderator
  • Description
  • Additional attributes
  • Nearby sighting(s) of same species
  • GPS evidence of location
853,336 sightings of 23,814 species from 16,350 members
NatureMapr is developed by at3am | Made and hosted in Australia | privacy | CCA 3.0