Caespitose perennial, grass-like or herb, 0.45 m high. Fl. green/purple, Sep to Nov. Grey sand, loam.
Beard’s Provinces: South-West Province.
IBRA Regions: Avon Wheatbelt, Jarrah Forest, Warren.
IBRA Subregions: Avon Wheatbelt P2, Southern Jarrah Forest, Warren.
IMCRA Regions: Leeuwin-Naturaliste.
Local Government Areas (LGAs): Albany, Augusta Margaret River, Boyup Brook, Donnybrook-Balingup, Kojonup, Nannup, Northam.
Alternative Names. Ehrharta, Lamarck's Ehrharta.
General Biology. Growth form. Grass. Life form. Perennial, caespitose/shortly rhizomatous. Reproduction. Seed, short rhizome. Dispersal. Water, wind, birds, slashing/mowing. Photosynthetic Pathway. C3. Seedbank persistence. Possibly short, 1 year. Fire response. Resprouts, enhances seed production and germination.
Notes. Can rapidly spread and mature. Capable of outcompeting native grasses and herbs. Accumulates large amounts of litter beneath plants, which has been identified as one of the mechanisms of competitive exclusion. Dominates ground and understorey layers. Thrives in sun or heavy shade. Tends to prefer moist, shady sites, having a high level of shade tolerance. Sets prolific seed over an extended period. Formation of seed occurs rapidly, within several weeks of flowering. Mowing aids establishment.
Additional information. Origin. Africa, temperate Asia. Similar native species. Microlaena stipoides.
Suggested method of management and control. Cut out small populations, removing all rhizomes. Alternatively spray with Fusilade® Forte 30 ml/10 L or 1.6 L/ha (based on 500 L water/ha) +vwetting agent or for generic fluazifop-p (212g/L active ingredient) 18ml/10L or 1L/ha + wetting agent on actively growing and unstressed plants. Use unplanned fires to spray regrowth and seedlings within 4-6 weeks of germination. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.
|Active Growth||Y||Y||Y||Y||Y||Y||Slows in hot conditions|
|Flowering||Y||O||O||O||O||O||O||Y||Y||Y||Y||Y||Can flower throughout year|
Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/