Present distribution
| This weed is not known to be naturalised in Victoria | ||||
Habitat: Grass-like wetland species (Champoeg Nursery). ‘Full sun or part shade’ (Robson et al. 2008). ‘Grow in sun to shade in moist soil or water to 2 inches deep (Riffle et al. 2008). Grows on margins of springs, streams, ponds and in seepage areas at moderate to high elevations (USGS). ‘Moist to wet soil moisture…common in wet meadows’ (SoundNative). ‘Low drought tolerance and restricted water conditions’ (Garden Guides). Tolerates seasonal flooding’ (Speichert and Speichert 2004). Moderate tolerance to salinity (USDA). Elevations up to 9000ft (Calflora). |
Map Overlays Used Land Use: Broadacre cropping; Pasture irrigation; water Ecological Vegetation Divisions Coastal; swampy scrub; freshwater wetland (permanent); treed swampy wetland; lowland forest; foothills forest; forby forest; damp forest; riparian; wet forest; high altitude shrubland/woodland; high altitude wetland; alpine treeless; granitic hillslopes; rocky outcrop shrubland; western plains woodland; riverine woodland/forest; freshwater wetland (ephemeral) Colours indicate possibility of Juncus ensifolius infesting these areas. In the non-coloured areas the plant is unlikely to establish as the climate, soil or landuse is not presently suitable. |
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QUESTION | COMMENTS | RATING | CONFIDENCE |
Social | |||
1. Restrict human access? | |||
2. Reduce tourism? | |||
3. Injurious to people? | |||
4. Damage to cultural sites? | |||
Abiotic | |||
5. Impact flow? | |||
6. Impact water quality? | |||
7. Increase soil erosion? | |||
8. Reduce biomass? | |||
9. Change fire regime? | |||
Community Habitat | |||
10. Impact on composition (a) high value EVC | |||
(b) medium value EVC | |||
(c) low value EVC | |||
11. Impact on structure? | |||
12. Effect on threatened flora? | |||
Fauna | |||
13. Effect on threatened fauna? | |||
14. Effect on non-threatened fauna? | |||
15. Benefits fauna? | |||
16. Injurious to fauna? | |||
Pest Animal | |||
17. Food source to pests? | |||
18. Provides harbor? | |||
Agriculture | |||
19. Impact yield? | |||
20. Impact quality? | |||
21. Affect land value? | |||
22. Change land use? | |||
23. Increase harvest costs? | |||
24. Disease host/vector? |
QUESTION | COMMENTS | RATING | CONFIDENCE |
Establishment | |||
1. Germination requirements? | |||
2. Establishment requirements? | |||
3. How much disturbance is required? | |||
Growth/Competitive | |||
4. Life form? | |||
5. Allelopathic properties? | |||
6. Tolerates herb pressure? | |||
7. Normal growth rate? | |||
8. Stress tolerance to frost, drought, w/logg, sal. etc? | |||
Reproduction | |||
9. Reproductive system | |||
10. Number of propagules produced? | |||
11. Propagule longevity? | |||
12. Reproductive period? | |||
13. Time to reproductive maturity? | |||
Dispersal | |||
14. Number of mechanisms? | |||
15. How far do they disperse? |