Adamson's Blown-grass (Lachnagrostis adamsonii, formerly Agrostis adamsonii) is an annual grass that grows to about 70 cm in height. Its form can be variable from a single flowering stalk with a few leaf blades to a tussock with multiple stalks. Over 90% of its occurrence is in the South West, mainly on the Volcanic Plains. Almost all populations occur on private land or on roadside reserves. Highest concentrations of populations lie to the north-west of Cavendish, to the south of Glenthompson and Wickliffe, and in the Willaura/Maroona area
Habitat & ecology
The main habitat is low lying, seasonally waterlogged sites with black cracking clays or strongly duplex soils with poorly permeable subsoil or on the margins of permanent waterbodies, it can also tolerate moderate to high salinity.
Flowers mature around December and seed is mainly spread by wind. Germination from seed takes place during winter and spring. Provided there is suitable habitat and low level competition from introduced plants Adamsons Blown-grass appears to have the capacity to colonise and expand.
Habitat fragmentation is a major threat to this species. Although Adamson’s Blown-grass is widely distributed across the volcanic plains it is only known from approximately 60 sites, many of these sites being small and subject to on-site threats.
Changes in environmental conditions such as long term drying out of wet areas appears to have a negative impact on the plant and favours invasion by introduced pasture species eg. Fog grass. Populations may have naturally fluctuated depending on wet or dry climatic sequences, however the plant has become more fragmented in its distribution and the source of invasive species has risen since European settlement. Now the natural balance may have been altered and the recovery after dry years may be significantly reduced, leading to further decline if not protected and appropriately managed. Threats include intensive grazing, sewing tall wheat grass in saline areas and inappropriate soil disturbance on roadsides which favours the spread of Phalaris and other competitive weeds.
Management actions in the South West (from the DSE Actions for Biodiversity Conservation database)
- Revise Action Statement and Recovery Plan.
- Negotiate with all relevant landholders and land managers regarding the type of protection appropriate for each site.
- Conduct stakeholder awareness activities seek funding re; field guide
- Liaise with CMA's, LGA's, CFA's and landholders, and involvement of volunteers and landholders in survey, monitoring and site protection actions, including use of the Botanic Guardians scheme.
- Discourage the sowing down of Tall Wheat Grass in sites where Adamson’s Blown-grass exists.
- Develop a field guide of native and primary salt indicator species that will alert people to a site being a native saline community that does not have to be rehabilitated.
- Protect populations on public road reserves, including signs. Consult with shire councils and utilities to minimise threats posed by road works, grazing or droving of domestic stock along road reserves.
- Record all locations on the Biosites database.
- Undertake periodic surveillance monitoring of populations – Ongoing.
- Undertake monitoring for presence of threats.
- At high priority sites1 conduct periodic surveillance monitoring of flora populations using VROTPop system.
- Negotiate Public Authority Management Agreement under FFG Act at High priority sites.
- Design & implement an introduction program in co-operation with landholders to test the suitability of Adamson’s Blown-grass for saline revegetation works.
- Facilitate research into environmental correlates of Adamson’s Blown-grass.
Approximate locality where Adamson’s Blown-grass has been recorded (note; road name does not imply the species exists along the entire road but may only be present in small areas which require protection).
Ararat Rural City
- Astons Road, Bushy Creek
- Astons Road, Bushy Creek – (private land)
- Back Bushy Creek Road (private land), Bushy Creek
- Berrambool Road (private land), Berrambool
- Delacombe Way and Malin Road, Willaura - High Priority
- Delacombe Way near Hopkins River also (private land), Willaura - High Priority
- Glenelg Hwy - south side, (Vic Roads), Glenthompson
- Glenelg Hwy - south side (private land), Lake Bolac - High Priority
- Lynches Crossing Road, Glenthompson
- Main and McCarthys Roads Cnr. - Willaura, (private land)
- Maroona - Glenthompson Road - west side, Glenthompson
- Maroona-Glenthompson Road - east side, Glenthompson
- Maroona - Glenthompson Road, Calvert
- Mortlake-Ararat road, west side - Maroona
- Mt William Road (private), Mt Weejort", High Priority
- Mt William Road - north side
- Narrapumelap Road - North, Wickliffe
- Narrapumelap Road - South, also (private land), Wickliffe
- Sheepwash Road, also (private land), Stavely
- Watgania Road - north side, Kio Ara - High Priority
- Williamsons Road, Wickliffe - Reedy Creek Station, (private land) - High Priority
- Yalla-Y-Poora Road, west side (private land), Mininera East - High Priority
City of Greater Geelong
- Easts Road - west side, Moorabool (along Cowies Creek)
Colac Otway Shire
- Lough Calvert
Golden Plains Shire
- Cressy - Shelford Road, Barunah - High Priority
- Dereel - Mt Mercer Road, Mount Mercer
- Dereel-Mt Mercer Road (private), Mount Mercer
- Ferrers Road (private land), Dereel - High Priority
- Ferrers Road, Dereel - High Priority
- Eight Mile Lane
- Eight Mile Lane - north side (private), Mingay
- Grahams Road
- Linton and Graham Roads Cnr - south east cnr. Lismore
- Lismore-Skipton Road and Mailmans Track Cnr - both sides, (also private land) -High Priority
- Rokewood-Skipton Road, Skipton
- Vite Vite Road - east side
- Warners Road, - north side
- Warners Road, - north side (private)
- Astons Road, Bushy Creek
- Astons Road, Bushy Creek – private
- Warrnambool – Caramut Road & Mustons Creek, Caramut
- Back Bushy Creek Road, Bushy Creek
- Carngham-Streatham Road
- Eurambeen - Streatham Road, also (private land), west side, Mawallock - High Priority
- Lake Goldsmith Wildlife Reserve – Parks Victoria
- Millers Road and Glenelg Highway cnr, Skipton (private land)
- Nerrin Nerrin Road (private land), Streatham - High Priority
- Skipton Road, Stockyard Hill - west side
Southern Grampians Shire
- Back Bushy Creek Road (private), Bushy Creek
- Bells Road - north side x 2 sites (private land)
- Bundol and D.McIntyre's Roads cnr, Victoria Valley
- Cavendish-Coleraine Road, Melville Forest (on private land)
- H.Hayes Road, Karabeal
- H.Hays Road (private), Karabeal
- Melville Forest Road, Bulart, near Cavendish
- Natimuk-Hamiliton Road - east side, Cavandish - High priority
- Parkwood Road, Bulart
- Springwood Road, Bulart
- Van Renens Road, Glenthompson
- Van Renens Road (private), Glenthompson
- Yarrack Road (private land), Bushy Creek - High Priority
- Yarrack Road, Bushy Creek - High Priority
Contact: Yvonne Ingeme, DSE -Hamilton 55730734
- DSE Flora Fauna Guarantee Action Statement No.101 pdf (135KB)
- Current projects for threatened species & their habitats
- Record sightings
This BIRD page is brought to you by the State Wide Integrated Flora & Fauna Team.
Feel free to edit, but please take care to preserve the integrity of the data. For example, listed management actions are derived from FFG Action Statements and the Actions for Biodiversity Conservation database administered by DEPI and should not normally be changed without prior discussion.
SWIFFT does not warrant the accuracy or completeness of information on this page and any person using or relying upon such information does so on the basis that the SWIFFT shall bear no responsibility or liability whatsoever for any errors, faults, defects or omissions in the information.
INTEGRATED FLORA & FAUNA TEAM