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Acacia ptychoclada

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Acacia ptychoclada Maiden & Blakely, J. & Proc. Roy. Soc. New South Wales 60: 190; pl. 18, figs 1–8 (1927)

Slender, erect shrub 0.6–2 m high. Branchlets angular, strongly ribbed, subappressed-puberulous, with some scattered, dark, resin-hairs. Phyllodes ascending, linear, straight to slightly incurved, subterete to compressed, 5–11 cm long, 0.6–1 mm wide, acute, excentrically mucronulate, puberulous, glabrescent, with 8 strongly raised, distant main nerves, 3-nerved per face when compressed. Inflorescences simple; peduncles 5–11 mm long, puberulous with white and dark reddish hairs; heads globular, 5 mm diam., 25–35-flowered, pale yellow or cream. Flowers 5-merous; sepals 1/3–2/3-united. Pods linear, raised over and slightly constricted between seeds, straight, to 5 cm long, 4–6 mm wide, chartaceous. Seeds longitudinal, broadly ovate or oblong, 4 mm long, arillate.

Confined to the Blue Mtns from Woodford to Mount Victoria, N.S.W. Grows in wet areas along streams and swampy areas. Flowers Jan.- Apr.

Perhaps most closely related to A. elongata which has broader phyllodes, heads in axillary racemes and white-hairy peduncles; possibly also not far removed from the ‘ A. wilhelmiana group’.

Type of accepted name

Woodford, N.S.W., Jan. 1899, J.H.Maiden s.n. ; holo: NSW237507; iso: PERTH (Fragment ex NSW).

Synonymy

[ Acacia elongata var. angustifolia auct. non (Benth.) Maiden & Betche, in J.H.Maiden: J.H.Maiden, Wattles & Wattle-barks 3rd edn, 58, 73 (1906)].

Illustrations

J.H.Maiden & W.F.Blakely, loc. cit .; T.Tame, Acacias SE Australia 92, fig. 82, pl. 82 (1992).

Representative collections

N.S.W.: above Bridal Veil Falls, Blackheath, 4 Feb. 1960, E.F.Constable s.n. (NSW); Blackheath, Apr. 1899, J.H.Maiden s.n. (K, NSW, PERTH ); Hazelbrook Recreation Reserve, 28 Jan. 1961, M.Tindale s.n. (NSW).

(RSC & BRM)

WATTLE Acacias of Australia CD-ROM graphic

The information presented here originally appeared on the WATTLE CD-ROM which was jointly published by the Australian Biological Resources Study, Canberra, and the Department of Parks and Wildlife, Perth; it was produced by CSIRO Publishing from where it is available for purchase. The WATTLE custodians are thanked for allowing us to post this information here.

Page last updated: Tuesday 11 September 2018