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Flora of Australia Online

Persoonia asperula L.A.S.Johnson & P.H.Weston, Telopea 4: 279 (1991)

T: Wadbilliga Fire Trail, c. 25 km SE of Numeralla, N.S.W., 36°20'S, 149°32'E, 11 Jan. 1973, L.G.Adams & M.P.Austin 2911 ; holo: NSW.

Illustration: P.H.Weston in G.J.Harden (ed.), Fl. New South Wales 2: 11 (1991).

Erect to prostrate shrubs to 2 m tall. Bark smooth. Hairs whitish or greyish, appressed to antrorsely spreading. Young branchlets moderately hairy. Leaves narrowly oblong to oblong to elliptic or, less frequently, ovate, 3–22 mm long, 1–6 mm wide, flat, with recurved margins, spreading, straight, innocuous, concolorous to strongly discolorous, not glaucous, sparsely to moderately hairy, scaberulous. Inflorescence auxotelic, 1–9-flowered; rachis 0–4.5 cm long. Flowers mostly subtended by reduced leaves or leaves; pedicels 1–5 mm long, erect to spreading, sparsely to moderately hairy; tepals 9–11 mm long, acute to apiculate, glabrous to moderately hairy on outside. Ovary glabrous; ovule 1. 

Occurs from Sandhills Range through the Tinderry and Kybean Ranges to Mt Kydra in N.S.W. and in the Moroka River catchment, Vic. Grows in heath dominated by Allocasuarina nana to wet sclerophyll eucalypt forest, in shallow, stony soils derived from granite or metasediments, at 900–1350 m alt. Flowers Jan.–Feb., with sporadic inflorescences as late as June. Map 33.

N.S.W.: Sandhills Ra., Hoskinstown–Braidwood area, 19 Nov. 1952, C.W.E.Moore (NSW); Badja Fire Trail, c. 0.3 km from Pikes Saddle, P.H.Weston 69 & D.T.Tomlinson (SYD); Wadbilliga Fire Trail, 3 km from Wadbilliga, M.D.Tindale 4034 & D.Wimbush (BRI, CANB, K, MEL, NSW). Vic.: Nielsons Crag, N.G.Walsh 1693 (MEL, NSW).

The single specimen from eastern Vic., sampled from a population of two plants, differs from the N.S.W. specimens in having smaller (3–8 mm long, 1–2 mm wide), narrowly elliptic leaves. It has no flowers, so there may be other differences too. This may belong to a different taxon, but further samples of better material are required before we can confidently classify these plants. The large disjunction between N.S.W. and Vic. populations is surprising given the existence of apparently suitable habitats in the intervening area.

Persoonia asperula sometimes hybridises with P. chamaepeuce where they grow together.

(P.H.Weston)

 

Data derived from Flora of Australia Volumes 16 (1995), 17A (2000) and 17B (1999), products of ABRS, ©Commonwealth of Australia