Senecio glaucophyllus subsp. basinudus
Senecio lautus var. α raoulii Hook.f., Senecio glaucophyllus subsp. raoulii (Hook.f.) Ornduff
Vascular – Native
Dicotyledonous Herbs - Composites
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
2n = 100
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley.
2012 | At Risk – Naturally Uncommon | Qualifiers: RR
Previous conservation statuses
2009 | At Risk – Naturally Uncommon
2004 | Range Restricted
Endemic. South Island only, from Banks Peninsula to the Otago Peninsula.
Coastal to lowland, usually on basalt to basaltic-andesite rocks. Favouring exposed cliff faces and associated talus, boulder field. Occasionally found on sand and sand dunes near cliff faces.
Erect, glabrous, dark green to glaucescent, perennial herb up to 0.9 x 1.0 m. Rootstock woody. Branches arising from base, mostly persistent, in some populatiosn dying back in winter. Stems sparingly to much branched, 0.10-1 m tall. Lower stem leaves more or less evenly spaced and sized; shortly petiolate, petiole broad and tapering; lamina 100-300 mm long, dark green to glaucescent above, oblanceolate, lanceolate to elliptic to narrow-elliptic to pinnatifid, very coarse-dentate or lobate; main segments 2-6 extending for much of length, tending to be smaller toward apex, deltoid to lanceolate, apex obtuse to acute, base auriculate, with auricles divided, semiamplexicaul. Mid stem leaves similar but often more deeply divided, up to 600 mm long. Upper stem leaves narrower and smaller, bases auriculate, auricles deeply lacerate or entire. Inflorescences Unit - subterminal to terminal, of (4-)6(-12) capitula arranged subcorymbosely, overtopping variable. Involucral bracts 4.3-5.0 mm long, linear to linear-lanceolate. Ray florets 10-16 or absent, when present ligules 2-3.5 x 1.6-1.8 mm, bright yellow, linear ovate, ovate to oblong. Disc 4-6 mm diameter. Cypsela 2.5-3.5 x 0.5-0.8 mm, dark brown to black-brown, narrowly elliptic to oblong-elliptic, slightly narrowed to or constricted below apex, base cuneate. Ribs broad and rounded; grooves deep, u-shaped; hairs conspicuous, retrorse in 1-6 rows, confined to grooves. Pappus 4.5-6.5 mm long, white.
A distinctive plant which beyond the shared chromosome number (2n = 100) has little obvious resemblance to S. glaucophyllus Cheeseman. S. glaucophyllus subsp. basinudus has narrower darker green to glaucescent leaves and fewer-flowered inflorescences with smaller capitula. The seeds are somewhat broader than subsp. glaucophyllus and notably more hairy. S. glaucophyllus subsp. basinudus is a basicole favouring basalt and basaltic-andesite volcanics. Plants considered to be it at Cape Campbell appear to be another, probably related but undescribed entity. They differ by their smaller size, more deeply lobed to pinnatifid leaves, and larger flowers.
October - March
December - May
Easy from fresh seed and semi-hardwood cuttings. An attractive perennial for a sunny spot. Excellent for rock walls or rockeries and very good in a pot.
Not threatened. Listed because it is a narrow range endemic of limited geographic range
senecio: From the Latin senex ‘old man’ (probably referring to the bearded seeds)
glaucophyllus: Blue or greyish/bluish leaves; having bloom on the leaves
Where To Buy
Not commercially available
The Senecio glaucophyllus complex are in serious need of revision, most of the taxa assigned to it at the rank of subspecies have little resemblance to the type and are probably better regarded as distinct species. There is some molecular evidence to support this view.
Fact Sheet prepared for NZPCN by P.J. de Lange 1 November 2008. Description based on Ornduff (1960), Webb et al. (1988) supplemented by observations obtained from fresh specimens and herbarium material
References and further reading
Ornduff, R. 1960: An interpretation of the Senecio lautus complex in New Zealand. Transactions of the Royal Society of New Zealand 88: 63-77.
Webb CJ, Sykes WR, Garnock-Jones PJ 1988. Flora of New Zealand. Vol. IV. Botany Division, DSIR, Christchurch
Please cite as: de Lange, P.J. (Year at time of access): Senecio glaucophyllus subsp. basinudus Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/senecio-glaucophyllus-subsp-basinudus/ (Date website was queried)