Class
Order
Family
Genus
Classification
Nomenclature
Scientific Name:
Senecio lautus G.Forst. ex Willd., Sp. Pl. ed. 4, 1981 (1803)
Synonymy:
- = Senecio neglectus A.Rich., Essai Fl. Nouv.-Zél., 258 (1832)
Vernacular Name(s):
Fireweed; Shore groundsel; Variable groundsel
Description
Prostrate to ascending, or erect, annual or short-lived perennial herb. Lvs glabrous or sparsely hairy, cuneately narrowed at base and often appearing petiolate, narrow-ovate, elliptic, oblong, or lanceolate, not lobed and entire, irregularly pinnately toothed, or lobed with many lvs usually pinnatifid with narrow to broad, entire or few-toothed, usually distant segments, 15–65–(110) × (3)–5–15–(60) mm; primary segments, lobes, or teeth (0)–3–6–(7) on each side. Uppermost lvs smaller, less divided, often amplexicaul. Supplementary bracts 6–16, 1–3 mm long. Involucral bracts (8)–10–13–(15), 4–6.5 mm long, usually glabrous, sometimes with a few scattered hairs. Ray florets 7–13 (extremely rarely 0); ligules yellow, (1)–2–7–(9) mm long. Disc yellow, 3–6 mm diam. Achenes usually densely hairy only between ribs, very rarely glabrous or ± evenly hairy, slightly narrowed to apex, 2.2–3 mm long.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Biostatus
Indigenous (Endemic)
Phenology
Flowering: Jan.–Dec.
Bibliography
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. [Not Threatened]
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. [as Senecio lautus G.Forst. ex Willd. subsp. lautus] [Not Threatened]
Richard, A. 1832: Essai d'une Flore de la Nouvelle Zélande. In: Dumont d'Urville, J. Voyage de découvertes de l'Astrolabe. Botanique. Tastu, Paris.
Willdenow, C.L. von 1803: Species Plantarum. Edition 4.
