Large-flowered short-styled grevillea (Grevillea brachystylis subsp. grandis) Interim Recovery Plan 2011 - 2016
Western Australia Department of Environment and Conservation , 2011
- Large-flowered short-styled grevillea (Grevillea brachystylis subsp. grandis) Interim Recovery Plan 2011 - 2016 (PDF - 233 KB) | (Word - 1,122 KB)
Grevillea brachystylis subsp. grandis was declared to be Rare Flora under the Western Australian Wildlife Conservation Act 1950 in April 2002 and is currently ranked as Critically Endangered (CR) in WA due to the severe fragmentation of populations and continuing decline in the quality of habitat. The subspecies is also listed under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 as Critically Endangered, under the previous taxon name Grevillea brachystylis subsp. Busselton.
The main threats are: competition from weeds, maintenance of road, drains and firebreaks, effects of agricultural encroachment and inappropriate fire regimes.
The subspecies is currently known from a range of less than 10 km2 south of Busselton. It grows on brown lateritic clay loam soils in Marri/Jarrah or rarely Mountain Marri woodland (Keighery 2009), mainly in areas infested with Watsonia meriana var. bulbillifera and Juncus microcephalus.
The objective of this plan is to abate identified threats and maintain or enhance in situ populations to ensure the long-term preservation of the subspecies in the wild.