(Eucalyptus gum forests camaldulensis) woodlands Lignum Variable 3-7 for vigorous Not critical Substantially unknown vs other (Muehlenbeckia depending on canopy species. Seedling establishment on florulenta) shrub size wet soils after flooding. Brief flooding in 9-12 months would 1 in 1-3 for increase seedling establishment but large is not critical with a duration of 4-6 Every three to weeks five years for healthy shrubs Coolibah 1 in 10-20; Not known Not expected to Germination most likely on wet soils, (Eucalyptus drought (water-logging be important either following flood recession or in coolabah) resistant is likely to be for trees. May run-on areas after rainfall. detrimental) be important Germination under water is unlikely for understorey to be successful. and associated plant communities, River cooba 1 in 3- 7 2-3 months Not likely to be Necessary conditions not known. (Acacia important Seedlings possibly tolerant stenophylla) of temporary waterlogging but duration not known Cane Grass 1 in 2-3; will 1-6 months Non-critical Nothing known about regeneration (Eragrostis tolerate 1 in 5-7 from seed, seedling establishment or australasica) circumstances when this is important. Common reed 1 in 1-2 8-12 months Spring to Germination is on moist muds (Phragmites autumn following flood recession or australis) drawdown, with almost no germination under water. Seedling establishment: Shallow, brief flooding in growing season of first and second year likely to improve seedling establishment. Water couch 1 in 1-2 5-8 months Critical: late Regeneration from seed, not known. (Paspalum winter or In most instances, regeneration is distichum) spring. Flooding probably from rootstock. needed over summer. Cumbungi (Typha 1 in 1-3 8-12 months Start in Germination and early seedling domingensis and autumn–winter. growth is on wet muds or shallow (to Typha orientalis) Dry phase in 5 cm) water. Regeneration is any late summer time from spring to autumn. into autumn Seedling establishment: Shallow flooding for a few weeks, especially in warmer months.
(Eucalyptus camaldulensis) woodlands gum forests Lignum (Muehlenbeckia florulenta) Variable depending on shrub size 1 in 1-3 for large Every three to five years for healthy shrubs 3-7 for vigorous canopy Not critical Substantially unknown vs other species. Seedling establishment on wet soils after flooding. Brief flooding in 9-12 months would increase seedling establishment but is not critical with a duration of 4-6 weeks Coolibah (Eucalyptus coolabah) 1 in 10-20; drought resistant Not known (water-logging is likely to be detrimental) Not expected to be important for trees. May be important for understorey and associated plant communities, Germination most likely on wet soils, either following flood recession or in run-on areas after rainfall. Germination under water is unlikely to be successful. River cooba (Acacia stenophylla) 1 in 3- 7 2-3 months Not likely to be important Necessary conditions not known. Seedlings possibly tolerant of temporary waterlogging but duration not known Cane Grass (Eragrostis australasica) 1 in 2-3; will tolerate 1 in 5-7 1-6 months Non-critical Nothing known about regeneration from seed, seedling establishment or circumstances when this is important. Common reed (Phragmites australis) 1 in 1-2 8-12 months Spring to autumn Germination is on moist muds following flood recession or drawdown, with almost no germination under water. Seedling establishment: Shallow, brief flooding in growing season of first and second year likely to improve seedling establishment. Water couch (Paspalum distichum) 1 in 1-2 5-8 months Critical: late winter or spring. Flooding needed over summer. Regeneration from seed, not known. In most instances, regeneration is probably from rootstock. Cumbungi (Typha domingensis and Typha orientalis) 1 in 1-3 8-12 months Start in autumn–winter. Dry phase in late summer into autumn Germination and early seedling growth is on wet muds or shallow (to 5 cm) water. Regeneration is any time from spring to autumn. Seedling establishment: Shallow flooding for a few weeks, especially in warmer months.
EWR-Lower-Namoi-River-in-channelflows.docx