Classification
 Nomenclature
Scientific Name:
Senecio sterquilinus Ornduff, Trans. Roy. Soc. New Zealand 88: 68 (1960)
Synonymy:
  • = Senecio lautus var. γ macrocephalus Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 145 (1853)
 Description

Erect, short-lived perennial herb. Lvs sparsely to moderately hairy, especially on lower surface, often densely hairy when not fully expanded, becoming less hairy, cuneately narrowed to stem and amplexicaul, elliptic to ovate, usually pinnately lobed to pinnatisect with usually broad, pinnately lobed or toothed segments, rarely only crenate, 3–14 × (1)–2–8 cm. Uppermost lvs smaller, often less divided with short, cuneate base and broad, amplexicaul lobes. Supplementary bracts (9)–12–25, 1.5–4 mm long. Involucral bracts (13)–18–21, glabrous, 6–11 mm long. Ray florets 13–23; ligules yellow, (3)–4.5–9–(10) mm long. Disc yellow 10–20 mm diam. Achenes ± evenly, densely hairy, slightly narrowed to apex, 2.5–3 mm long.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Aug.–May.

 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Relic]
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76.
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Relic]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Relic]
Hooker, J.D. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.
Ornduff, R. 1960: An interpretation of the Senecio lautus complex in New Zealand. Transactions of the Royal Society of New Zealand 88: 63–77.