This community has a restricted distribution within a very small range. It has been seriously depleted by past harvesting and degraded as a result of cattle trampling. There are no verified occurrences in protected areas. This community occurs on fluvial parent materials, on somewhat dry floodplain sites.
Soils are silts and loams, with a rich nutrient regime.
All stages Selected references Braumandl, T.F. and M.P. Curran. For., Victoria, B.C. Land Manage. Meidinger, D.V. 1990.