Classification
Class
Magnoliopsida Brongn.
Order
Asterales Link
Family
Compositae Giseke
Genus
Senecio L.
 Nomenclature
Scientific Name:
Senecio hauwai Sykes, New Zealand J. Bot. 25: 611-613 (1987)
Etymology:
The epithet hauwai refers to the geographic location where the plant was first found.
 Description

Prostrate to ascending, perennial herb, becoming distinctly woody toward base. Lvs glabrous or sparsely hairy, especially when young, apetiolate and cuneate, usually elliptic-oblong, sometimes oblanceolate, deeply pinnatifid to 1-pinnate, (12)–15–30 × 5–12 mm; segments narrow-oblong, usually few-toothed, sometimes entire, (3)–5–(6) on each side. Uppermost lvs smaller, usually less divided. Supplementary bracts 3–5–(7), 2–3 mm long. Involucral bracts 11–13, glabrous or sparsely hairy, 4–5 mm long. Ray florets 0. Disc pale yellow, 5–9 mm diam. Achenes with scattered hairs in narrow grooves between broad ribs, slightly narrowed to apex, 2.8–3.4 mm long.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Nov.–Mar.

 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. [Naturally uncommon]
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. [Nationally Endangered]
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. [Nationally Endangered]
Sykes, W. R. 1987: A new species of Senecio from New Zealand. New Zealand Journal of Botany 25: 611–613.