Acacia dangarensis Tindale & Kodela (family Fabaceae) is a small tree to 10 m high with bark at first smooth and grey, later fissured and blackish at base. It has branchlets more or less terete with low ridges, glabrous. and leaves with rachis 1.5-6 cm long, more or less glabrous or with very sparse hairs, jugary glands present, interjugary glands absent. Acacia dangerensis has pinnae 2-6 pairs, 3-8 cm long; pinnules 14- 30 pairs, linear, mostly 4-9 mm long, 0.25-0.4 mm wide, glabrous; petiole 0.4-4.5 cm long, with 1 prominent gland. Heads globose, 12-26-flowered, bright yellow, in terminal or axillary panicles; peduncles 1-3 mm long, glabrous. Pods more or less straight, more or less flat, 3-8 cm long, 5-7 mm wide, glabrous; seeds longitudinal; funicle filiform and expanded towards seed. It flowers August to September. A. dangarensis is distinguished from its closest relative A. decurrens by its branchlets being terete with several low longitudinal ridges to c. 0.2 mm high (the branchlets of A. decurrens are prominently winged with narrow ridges to 2 mm high), leaves with rachis (1.6-)3-6 cm long, 2-6 pairs of pinnae and a gland often present above each secondary pulvinus, and flower heads 2-4 mm in diameter.
Acacia dangarensis |
Status: Critically Endangered on the EPBC Act list
Government evidence of impact of climate change:
Australian Government, Conservation Advice, Acacia dangarensis
Justification Two major threats impact on Acacia dangarensis; i.e. weeds and an inappropriate fire regime.
The AOO of Acacia dangarensis is 4 8 km2; it only occurs at one location and there is a plausible future threat of inappropriate fire regime that could increase the species risk of extinction in a very short time.
Threats to Acacia dangarensis include inappropriate fire regimes; weeds and potentially feral herbivores on seedlings.