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Acacia crassa Pedley subsp. crassa Family Fabaceae
Subfamily Mimosoideae
Acacia crassa subsp. crassa Pedley APNI*

Synonyms: Racosperma crassum (Pedley) Pedley APNI*

Description: Erect or spreading tree or shrub 2–10 m high, sometimes multistemmed; bark smooth to finely corrugated or fissured, grey or brownish grey; branchlets angled or flattened, glabrous.

Phyllodes narrowly elliptic, ± falcate, mostly 10–25 cm long and 10–27 mm wide (sometimes to 31 mm wide), glabrous, 3 or sometimes 4 longitudinal veins more prominent, the lower 2 joining together near base, minor longitudinal veins anastomosing, apex subacute; 1 gland at base; pulvinus 3–8 mm long.

Inflorescences usually 2 in axil of phyllodes; peduncles 4–8 mm long, glabrous, sometimes mealy; heads cylindrical, 4.5–9 cm long, bright or deep yellow.

Pods straight to curved or twisted, raised over and slightly constricted between seeds, 4–9 cm long, 2–4 mm wide, firmly papery to thinly leathery, smooth or slightly wrinkled when dry, often slightly pruinose, glabrous or with sparse hairs; seeds longitudinal; funicle folded several times and terminating in an aril.


Habit

Flower

Herbarium
Sheet

Flowering: August–November.

Distribution and occurrence: north from Denman and Wollar.

Grows in sclerophyll forest, woodland, heath or open scrub, in often red, gravelly, sandy, sandy loam or clayey soils, on sandstone and rocky conglomerate.
NSW subdivisions: NWS, CWS, NWP
Other Australian states: Qld
AVH map***

The name refers to the thick phyllodes and twigs. Related to Acacia concurrens and A. leiocalyx, both of which have generally smaller phyllodes and less dense and paler flower spikes. A. crassa subsp. longicoma occurs in Queensland.

Text by P.G. Kodela (last edited May 2012)
Taxon concept: P.G. Kodela & G.J. Harden, Flora of NSW Vol. 2 (2002)

The single subspecies in NSW.

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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