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Acacia demissa

species of plant

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 6, 2025
Entity authorityQ9563997 ↗
Source-derived summary

Acacia demissa is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a shrub or tree with pendulous, slender, glabrous branchlets, pendulous linear to narrowly elliptic phyllodes, oblong to cylindrical heads of golden yellow flowers and oblong to narrowly oblong, thick and woody pods.

Description

Acacia demissa is shrub or tree with that typically grows to a height of up to 4 m (13 ft) and has slender, glabrous, pendulous branchlets and phyllodes. The phyllodes are glabrous, linear to narrowly elliptic, mostly 65–150 mm (2.6–5.9 in) long, 1.5–4 mm (0.059–0.157 in) wide and thinly leathery with a hooked tip and many closely parallel veins. The flowers are golden yellow and borne in two or three oblong to cylindrical heads 8–23 mm (0.31–0.91 in) long in axils on a peduncle 2.5–5 mm (0.098–0.197 in) long. Flowering mainly occurs from April to June and the pods are oblong to narrowly oblong, up to 100 mm (3.9 in) long, 8–17 mm (0.31–0.67 in) wide, thick and woody, the margins 2 mm (0.079 in) wide. The seeds are broadly elliptic to nearly circular, 6.5–9 mm (0.26–0.35 in) long and dull brown to black with a small aril on the end.

Taxonomy

Acacia demissa was first formally described in 1995 by Richard Cowan and Bruce Maslin in the journal Nuytsia from specimens collected by Maslin on Cobra Station, 82.5 km (51.3 mi) north of Landor Homestead on the track to Mount Augustus Station. The specific epithet (demissa) means 'drooping' or 'trailling'.

Distribution and habitat

This species of wattle grows in a variety of habitats on low quartzite or granite hills, floodplains, flats and creeklines inland from Shark Bay between Gifford Station, about 270 km (170 mi) south-east of Carnarvon in the Gascoyne and Murchison bioregions of northern inland Western Australia.

Editorial summary

“Acacia demissa” enters the record as species of plant. Crown Archives preserves that source wording while asking what Acacia, demissa and species can confirm, complicate or overturn.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current lead gives the account dated anchors—1995—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Acacia, demissa and species.
Editorial analysis

Why this record matters

“Acacia demissa” is worth following because a concise public description often conceals a longer documentary argument. Here, Acacia, demissa and species provides the most credible route into that argument.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Sep 6, 2025. The linked authority identifier is Q9563997. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1995.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from “Acacia demissa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.