Nature conservation

Threatened species

Large-leafed Monotaxis - profile

Indicative distribution

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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: Monotaxis macrophylla
Conservation status in NSW: Endangered
Commonwealth status: Not listed
Profile last updated: 03 Jan 2019


Large-leafed Monotaxis is an erect herb to 25 cm tall. Its leaves are up to 50 mm long by 15 mm wide. The flowers are small, yellow and form dense clusters on short stalks at the ends of the branches. Plants have separate male and female flowers, with a few female flowers surrounded by numerous males.


Large-leafed Monotaxis is recorded from several highly disjunct populations in NSW: eastern edge of Deua NP (west of Moruya), Bemboka portion of South East Forests National Park, Cobar area (Hermitage Plains), the Tenterfield area, and Woodenbong (near the Queensland border). It is also in Queensland. A recent record from the eastern spur of the Nandewar Range is in the Namoi catchment.

Habitat and ecology

  • The distribution and supposed rarity of Monotaxis macrophylla within NSW is related to the occurrence of fire. At least within NSW, the species has not been found in the absence of fire.
  • There is a great diversity in the associated vegetation within NSW (less though in Queensland), encompassing coastal heath, arid shrubland, forests and montane heath from almost sea level to 1300 m altitude.
  • Monotaxis macrophylla displays the properties of a fire ephemeral species in many ways. Germination is stimulated by the passage of fire, individual plants have a short life span, a large biomass is produced in a short period of time, flowering occurs shortly after germination, and populations do not persist in the absence of fire.
  • Flowers in August. Plants have a short life span and do not seem to persist longer than six months. Plants germinate, attain heights of up to 50 cm and reach flowering stage within 2 to 3 months.
  • In only a few months after germination, the species was observed to produce a thick sward that dominated the community, yielding a very large biomass in a short time. Many hundreds of plants have been observed growing with Muehlenbeckia costata on recently burnt rock outcrops. Plants are recorded as common but localised in populations. In the northern NSW sites, Monotaxis macrophylla was locally abundant on outcrops especially where burnt.
  • Grows on rocky ridges and hillsides.

Regional distribution and habitat

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


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
Brigalow Belt SouthPilliga Known None
Cobar PeneplainNymagee Predicted None
NandewarPeel Predicted None
New England TablelandsEastern Nandewars Known None
New England TablelandsNightcap Known None
New England TablelandsTingha Plateau Known None
South East CornerSouth East Coastal Ranges Known None
South Eastern QueenslandWoodenbong Known None
Sydney BasinHunter Known None
Sydney BasinKerrabee Known None