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Flora of Australia Online

Senecio howeanus Belcher, Kew Bull. 47: 768 (1992); the epithet comes from (Lord) Howe (Island) and the suffix -anus (belonging or connected with).

T: Lord Howe Island, 24 Nov. 1986 R.O.Belcher 2651 ; holo: K; iso: MEL, MICH, NSW.

Erechtites quadridentatus var. glabrescens (DC.) Benth., Fl. Austral. 3: 660 (1867), p.p. , quoad W.G.Milne [9]. T: New South Wales, A.Cunningham 134 ; holo: G, IDC microfiche 500/2.1091/4.

Senecio glomeratus var. tridentatus Belcher ex J.S.Turner et al. , Conservation Norfolk Is. 36 (1968), nom. nud. cf. Kew Bull. 47: 772 (1992). 

Senecio sp. ‘B’; S.W.L.Jacobs & J.Pickard, Pl. New South Wales 86 (1981). 

Senecio sp. aff. quadridentatus Labill.; A.N.Rodd & J.Pickard, Cunninghamia 1: 273 (1983). 

[Erechtites quadridentatus auct. non (Labill.) DC.: F.J.H. von Mueller, Fragm. 9: 77 (1875); W.B.Hemsley, Ann. Bot. (London ) 10: 240 (1896); J.H.Maiden, Proc. Linn. Soc. New South Wales 39: 379 (1914)] 

Annual herb or short-lived perennial, spreading or erect to 40 cm, with scattered wispy hairs. Lower leaves crowded, subpetiolate, obovate to oblanceolate, without auricles, to 4 cm long, 1.2 cm broad, entire or remotely callose-denticulate; mid-cauline leaves subpetiolate, oblanceolate, auriculate, lobulate or 2–4-pinnately lobed; upper leaves sessile, clasping, auriculate. Capitula few–100 in a cymose inflorescence; calycular bracteoles 4–6, linear-lanceolate, 1.5–2 mm long, crowded below receptacle; involucral bracts (9–) 11–13, 4.5–6 mm long. Outer florets 8–10, usually female, often with staminodes, sometimes with pollen, slender, tubular, yellow; lobes (2–) 3 or 4 (–5); disc florets 15–25, funnel-shaped; lobes 4 or 5. Cypselas 2.2–2.5 mm long, brown; pappus hairs persistent. Fig. 90E–G.

Lord Howe Is. Endemic. It is common near the shore around the Island, including adjacent islets, and scattered at higher elevations; almost weedy. 

L.H.Is.: North Beach, L.A.S.Johnson & A.N.Rodd 1245 (NSW); E end of Neds Beach, J.H.Willis (MEL); sea cliffs by Transit Hill, P.S.Green 1627 (K); E side of Mt Lidgbird, J.Pickard 3631 (NSW); Roach Is., A.C.Beauglehole 5649 (CANB, MEL).

Frequently collected and variously misnamed in the past. Some early collections were erroneously named Senecio lautus .

 

Data derived from Flora of Australia Volume 49 (1994), a product of ABRS, ©Commonwealth of Australia