Bog Grevillea - profile

Indicative distribution

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Key:

known

predicted

The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.

Scientific name: Grevillea acanthifolia subsp. paludosa

Conservation status in NSW: Endangered

Commonwealth status: Endangered

Profile last updated: 21 Sep 2021

Description

The Bog Grevillea is a large, prickly, spreading shrub to 3 m high and 5 m across. Ridges run along the branchlets. The leaves are up to 6 cm long and much-divided into many triangular lobes. The toothbrush flower spikes are distinctive and up to 5 cm long. Each flower is bright pink to red, with a green tip. Flowers appear from spring to early summer.

Distribution

Bog Grevillea is known from two small populations: Nalbaugh National Park south-east of Bombala; Bega Swamp near Bemboka.

Habitat and ecology

Bog Grevillea is found, as the name implies, in peaty swamps. Within such habitat it grows on densely vegetated low hummocks.
The larger known population consists solely of old plants of similar age. The species is bird-pollinated and, although seed is set, no seedlings are apparent.
It is probably fire-sensitive, by analogy with other subspecies, but it may have some capacity to resprout after a fire.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.

Threats

The species is secure from habitat loss, but the small range and population size makes it vulnerable to local extinction from rare catastrophic events.
Changes to river flow regimes and related hydrological disturbances.
Trampling and grazing by stray domestic horses.
Trampling, breakage and collection by humans.
Disturbance by deers.
Lack of distributional knowledge about this species.
Frequent fire is probably a significant threat to this species.
Phytophthora now suspected to occur on one site following disturbance
Pigs dig in habitat and may affect recruitment or spread Phytophthora cinnamomi

Recovery strategies

A targeted strategy for managing this species has been developed under the Saving Our Species program; click here for details. For more information on the Saving Our Species program click here

Activities to assist this species

There should be no prescribed burning in populations until the fire response of the species is known.
Fire should be excluded from populations following wildfire until after plants have reached reproductive maturity (probably at least 10 years).
Monitor the population for changes in numbers and health of individuals
Further research into the fire requirements of the species is required.
Search likely habitat for other populations.

Information sources

Harden, G.J. (ed.) (2002) Flora of New South Wales. Volume 2, Revised Edition. UNSW, Sydney.
Makinson, R.O. and Albrecht, D.E. (1989) A new subspecies of Grevillea acanthifolia (Proteaceae: Grevilleoideae) from south-eastern New South Wales. Muelleria 7(1):89-93.

IBRA Bioregion	IBRA Subregion	Known or predicted	Geographic restrictions region

South East Corner	South East Coastal Ranges	Known	None
South Eastern Highlands	Kybeyan-Gourock	Predicted	None

Images

Bog Grevillea, Jackie Miles Image 1 of 4.
View slideshow.

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