Chilean Needlegrass at Mount Majura
Identification history
| Nassella neesiana | 9 May 2024 | waltraud |
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User's notes
in grassy woodland uphill of Seed Node; Mapped with Field Maps / Untreated weeds the 3rd time; area with CNG is expanding.
2 comments
Mike
wrote:
9 May 2024
This species establishes large seedbanks, which can persist for many years. In Australia, seedbank densities have been recorded as high as 11,377 seeds/m2, and even higher densities have been observed in New Zealand. It was suggested that a seed-bank with a density of 7000 seeds/m2 would take 12 years to reduce to 10 seeds/m2 without additional seed input. This suggests that in areas where eradication has been seemingly achieved, the seedbank would require monitoring for over 12 years to prevent re-establishment of this species.
Humphries, T.; Florentine, S.K. A Comparative Review of Six Invasive Nassella Species in Australia with Implications for Their Management. Plants 2021, 10, 1036. https://doi.org/10.3390/plants10061036
Humphries, T.; Florentine, S.K. A Comparative Review of Six Invasive Nassella Species in Australia with Implications for Their Management. Plants 2021, 10, 1036. https://doi.org/10.3390/plants10061036
Location information
- Coordinates 149.169786-35.226294
- Altitude 621.9m
- Maps The Fair, Watson
- Places Watson, ACT
Sighting information
- 16 - 100 Abundance
- 7 May 2024 04:24 PM Recorded on
- waltraud Recorded by
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Collections
Plants Grasses waltraud Canberra & Southern Tablelands NatureMapr
Species information
- Nassella neesiana Scientific name
- Chilean Needlegrass Common name
- Not Sensitive
- Exotic
- Major weed or pest
- Up to 1434.7m Recorded at altitude
- 255 images trained Machine learning
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In flower
- External link More information
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
