Common name: Bynoe's wattle, tiny wattle
Acacia bynoeana Benth. APNI*
Synonyms: Acacia pumila Maiden & R.T.Baker APNI*
Racosperma bynoeanum (Maiden & R.T.Baker) Pedley APNI*
Description: Decumbent shrub to 0.5 m high; branchlets ± terete, ± hairy. Stipules ± subulate, to 1.5 mm long.
Phyllodes narrowly elliptic to ± linear, straight to slightly curved, usually (0.5-) 1–6 cm long (occasionally some phyllodes to 8 cm long; often clusters of small phyllodes in depauperate specimens), 1–3 mm wide, at first coarsely hairy and then ± glabrous, 3 longitudinal veins prominent, apex ± pungent-pointed; 1 minute gland at base; pulvinus to 1 mm long.
Inflorescences simple, 1 in axil of phyllodes; peduncles 2–6 mm long, hairy; heads globose, 10–25-flowered, 3–4 mm diam., bright yellow.
Pods straight, raised over and ± slightly constricted between seeds, 1–3 cm long, 3–4 mm wide, firmly papery and brittle, with raised pale anastomosing longitudinal veins, ± minutely hairy; seeds longitudinal; funicle expanded towards seed.
Flowering: mainly summer.
Distribution and occurrence: mainly south of Dora Creek-Morisset area to Berrima and the Illawarra region, west to the Blue Mtns, also recorded from near Kurri Kurri in the Hunter Valley and from Morton National Park; uncommon.
Grows mainly in heath and dry sclerophyll forest, in sandy soils.
NSW subdivisions: NC, CC, SC, CT, ST
Threatened species: NSW TSCA: Endangered ROTAP: 3VC-
Named after Benjamin Bynoe (1803?-1865), a Royal Navy surgeon who collected the type specimen during the voyage of the Beagle.
Text by P.G. Kodela (last edited May 2012)
Taxon concept: P.G. Kodela & G.J. Harden, Flora of NSW Vol. 2 (2002)
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