Classification
Class
Magnoliopsida Brongn.
Order
Asterales Link
Family
Compositae Giseke
Genus
Senecio L.
 Nomenclature
Scientific Name:
Senecio marotiri C.J.Webb, New Zealand J. Bot. 26: 482-484 (1988)
Etymology:
The epithet marotiri refers to the place name Marotiri [Marotere] Islands, also known as the Chickens group.
 Description

Erect annual herb. Lvs hairy when young, becoming sparsely hairy or almost glabrous; lowermost lvs elliptic, long-cuneate, serrate with 3–7 teeth on each side; mid cauline lvs oblanceolate to linear-oblong, remotely dentate, (50)–60–120 × 4–15 mm; uppermost lvs smaller, lanceolate, amplexicaul, entire or few-toothed. Supplementary bracts 9–12, 1.5–3 mm long. Involucral bracts 10–13, glabrous, (6)–7–8 mm long. Ray florets 8–11; ligules yellow, 1–2 mm long. Disc yellow, c. 4–5 mm diam. Achenes densely hairy only between ribs, slightly narrowed to apex, 2.8–3.2 mm long.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Oct.

 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. [Naturally Uncommon]
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. [Naturally Uncommon]
Webb, C.J. 1988: Notes on the Senecio lautus complex in New Zealand. New Zealand Journal of Botany 26: 481–484.