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Indigofera australis (coastal form). austral indigo                        

                                                                                                                                                                            Photos (click to enlarge)

  

Family

Fabaceae

Description

Fast growing, open shrub to 1.5m tall. Compared to the inland forms, the coastal forms tend to be more spreading and rounded in form, have brighter pink flowers and shorter and more rounded leaflets. The fruit and seeds are also smaller.

Flowering time

Late winter- spring.

Distribution & botanical details

click here

for information on the overall species. The coastal forms are found on the eastern side of the Dividing Range and the coastal plains and foothills.

Vegetation communities

Dry and wet sclerophyll forest.

Soil types/ecological niche

Variable, from sandy soils to basalt. Acts as both a primary coloniser as well as a long term component of the understory. Regenerates from the base following drought, fire or severe grazing. 

Values/uses

  

  -habitat values

The foliage and pods are relished by kangaroos and wallabies.

  -amenity/ornamental     values

Beautiful in flower. Faintly but pleasantly scented, the scent similar to that of wisteria. Useful coppicing ability.

  -economic/functional     values

Extremely useful for revegetation of eroded sites, quarries and mines with rocky, skeletal substrates without topsoil. 

Tolerances

  

   -water deficit

average

   -compaction

average

   -waterlogging

average

   -shade

average-high

   -soil salinity

not known

   -salt spray

probably low

   -pH

5-7

   -minimum temperature

-3 degrees

Seed and germination details

  

  -avge no. seeds per gram

350

  -viability period

long

  -dormancy

hard seed coat

  -treatment

hot water 90 degrees for 1 minute

  -days from first to last  germination at

25 degrees

5-25

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

 

  

 

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