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Acacia startii

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Acacia startii A.R.Chapm. & Maslin, Nuytsia 8: 275; 250, fig. 1(a) & 261, fig. 4B (1992)

Dense, rounded shrub 1–2 m high. New growth tomentose. Phyllodes ovate to elliptic or narrowly elliptic, 2–5.5 cm long, 8–23 mm wide, l:w = 2–4, obtuse, coriaceous, tomentose and milky green when young, glabrescent and green or occasionally glaucous when mature, prominently 2-nerved; lateral nerves obscure; glands not prominent, 1–7 mm above pulvinus, often also at base of mucro. Inflorescences 3–6-headed racemes, sometimes growing out with subsequent inflorescences simple; raceme axes 1–4 cm long, tomentose; peduncles 10–25 mm long, normally tomentose; heads globular, densely 30–55-flowered, lemon yellow. Flowers 5-merous; sepals united into a truncate calyx. Pods strongly curved to openly once-coiled, to 7 cm long, 3–4 mm wide, crustaceous, tomentulose, subglabrous with age. Seeds longitudinal, oblong, 5–6 mm long, glossy, dark brown; aril orange-red (dry).

Occurs from the Cape Ra. Natl Park S to the Minilya R., W.A. Grows on plains and hills in loam often associated with limestone, in low shrub and open shrubland.

A member of the ‘ A. bivenosa group’. Often sympatric with A. bivenosa which is usually a glabrous shrub with green or glaucous phyllodes, deep golden heads with fewer flowers and submoniliform, broader pods. With respect to phyllode dimensions, A. startii resembles the more southerly A. telmica and A. didyma but is distinguished by its tomentose young phyllodes, lemon yellow, 30–55-flowered heads and narrow pods.

Type of accepted name

16.6 km E from Yardie Ck Rd along track to Sandy Point No.2, Cape Ra. Natl Park, W.A., 30 Aug. 1988, A.R.Chapman 596 ; holo: PERTH; iso: CANB, G, K, MEL, NSW, NY.

Illustrations

A.R.Chapman & B.R.Maslin, loc. cit .

Representative collections

W.A.: 24.1 km S of turn-off to Coral Bay on Exmouth Rd, A.R.Chapman 587 (AD, MO, PERTH); Tropic of Capricorn, North West Coastal Hwy, 31 Oct. 1983, W.B.Edgecombe (PERTH); c. 10 km E of Bullara HS on Bullara- Giralia road, A.N.Start 65 (CANB, K, MEL, NSW, PERTH).

(ARC & 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