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Flora of Australia Online

Grevillea ramosissima Meisn., Hooker's J. Bot. Kew Gard. Misc. 7: 74 (1855)
Fan Grevillea

Anadenia caleyi R.Br., Suppl. Prodr. Fl. Nov. Holl. 16 (1830), non Grevillea caleyi R.Br. (1810). T: N.S.W., 'Loc. Ora orient., mont. Port Jackson, 1804. b. Caley. 1817. D. Cunningham.' [protologue]; lecto: 'Anadenia montana R.B.Barralier's Journey Mr George Caley; Embothrium ilicifolium August 11-1806'; lecto: BM, fide D.J.McGillivray & R.O.Makinson, Grevillea 437 (1993); isolecto: A n.v. , NSW.

Shrub, often root-suckering, 0.3–1.5 (–3.0) m high. Leaves 3–8 (–10) cm long, pinnatifid to pinnatipartite with 3–11 primary lobes, the lower ones usually again 3–5 (–7)-partite, often some secondary lobes again 2- or 3-fid; ultimate lobes subtriangular to narrowly so or ovate, 3–20 (–28) mm long, 2–7 (–10) mm wide, pungent; margins shortly and angularly recurved; lower surface mostly or completely exposed, tomentose with twisted or curly hairs, or subsericeous with straight hairs. Unit conflorescence narrowly conical to cylindrical, acropetal; floral rachis 25–85 (–100) mm long. Perianth tomentose outside. Pistil 3.5–5.3 mm long; style tomentose almost to apex with biramous hairs and occasional simple erect hairs, sparser towards apex. Follicle 7.5–10 mm long, tomentose. 

Occurs in eastern N.S.W. along the western fall of the Great Dividing Ra. and adjacent slopes from the Pilliga Scrub (Coonabarabran) area S to Goulburn, Canberra, Tumut, and the Walwa area of north-eastern Vic. Grows in dry sclerophyll woodland, usually in skeletal soils on sandstone, granite or porphyry. 

Distinguished from the closely related G. triternata and G. raybrownii which both have the style glabrous, or with hairs only in the millimetre or so above the subsericeous ovary; they also generally have much narrower ultimate leaf lobes (usually 1–3 mm wide), and usually shorter unit conflorescences (1–3 cm long), which in G. raybrownii are also dense and ovoid. Possible intergrades between G. ramosissima subsp. ramosissima and G. triternata are known (see under the latter species for details), but the two species generally maintain their integrity in other parapatric or even fully sympatric parts of their ranges.

There are two subspecies.

(R.O.Makinson)

Lower surface of leaf tomentose with twisted or curly hairs; unit conflorescence 2.5–4 (–5) cm long

subsp. ramosissima

Lower surface of leaf sericeous to subsericeous with straight hairs; unit conflorescence 4.5–5.5 (–10) cm long

subsp. hypargyrea

 

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