Nature conservation

Threatened species

Ancistrachne maidenii - 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: Ancistrachne maidenii
Conservation status in NSW: Vulnerable
Commonwealth status: Not listed
Gazetted date: 23 Jul 1999
Profile last updated: 01 Dec 2017


A scrambling perennial with slender, rigid horizontal stems and ascending branches. Leaves with sparsely hairy sheath. Racemes (inflorescences) terminal or axillary, c. 4 cm long, the latter ones shorter and partially enclosed in the sheath. Spikelets falling entire at maturity, 2.5 - 3 mm long. Upper glume distinctly 5 - nerved, subequal to the spikelet, obtuse to almost acute and, together with the lower lemma, sprinkled with fine, mostly curved hairs on a tubercle base (similar to a wart). Lower lemma similar to the upper glume, distinctly 7 - nerved. Fertile floret elliptic to lanceolate, obscurely nerved, produced into a short but distinct mucro to 0.25 mm long, the palea subequal to the lemma and similar in texture.


Restricted to northern Sydney, around St Albans - Mt White - Maroota - Berowra areas and to the Shannon Creek area south-west of Grafton.

Habitat and ecology

  • Habitat requirements appear to be specific, with populations occurring in distinct bands in areas associated with a transitional geology between Hawkesbury and Watagan soil landscapes.
  • Flowers in summer.
  • Grows in dry sclerophyll forest on sandstone-derived soils.

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
South Eastern QueenslandClarence Lowlands Known None
South Eastern QueenslandClarence Sandstones Known None
Sydney BasinPittwater Known None
Sydney BasinWollemi Known None
Sydney BasinYengo Known None