Nature conservation

Threatened species

Silver-leaved Water Tree - 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 nematophylla
Conservation status in NSW: Extinct
Commonwealth status: Not listed
Profile last updated: 19 Dec 2023

Description

Grevillae nematophylla, also known as the Silver-leaved Water Tree, is a shrub, 2–6 m high. The branchlets are not glaucous. Leaves are simple and 55–300 mm long overall. Leaf blade is 0.5–3 mm wide, dissected or undissected, subterete or flat, linear, subpinnatisect and not further divided. Leaf lobes 40–300 mm long, 0.5–4 mm wide. Margins are entire and flat.

The inflorescence terminal is a raceme. Flowers are white, cream or pink and very irregular. Pedicel is 0.5–3 mm long. Perianth is 3–4.5 mm long, glabrous or simple-hairy and 4 -partite. The lobes are all free. It has 4 stamens. Pistil is 5–15 mm long and stipitate. The stipe is 0.5–2 mm long. The ovary is glabrous. Styles are glabrous and white or cream coloured. The pollen presenter is conical.

Fruit is rugose, ellipsoidal, glabrous and 13–24 mm long.

Distribution

The Silver-leaved Water Tree is presumed to be extinct within NSW. Its current distribution includes Western Australia, South Australia and the Northern Territory.  

Habitat and ecology

  • The Silver-leaved Water Tree grows in various habitats including Acacia (Mulga) or Eucalyptus woodland, tall shrubland or bluebush and saltbush plains. It prefers low-lying or swampy sites along watercourses in clay to sandy loam soil, sometimes over limestone, laterite or ironstone.
  • Flowering time is November or December.
  • The species regenerates from seed.


Recovery strategies

Activities to assist this species

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region