Ranunculus aucklandicus A.Gray, R. subantarcticus F.Fisher et J.Hair
Vascular – Native
Herbs - Dicotyledons other than 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 = 48
Current conservation status
The threat classification 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) – more information about this can be found on the NZTCS website 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. Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – a suggested threat classification status has not been assessed by the NZTCS panel.
2017 | At Risk – Naturally Uncommon | Qualifiers: RR
Previous conservation statuses
2012 | At Risk – Naturally Uncommon | Qualifiers: RR
2009 | At Risk – Naturally Uncommon | Qualifiers: OL, IE
2004 | Range Restricted
Endemic. Auckland and Campbell Islands
Coastal to alpine (0-500 m a.s.l.) in damp turf, on forest margins, in scrub, along streamsides and swamps and in windswept turf and Herbfield.
Perennial tufted, non rhizomatous herb. All parts finely covered with long, stiff, yellow-brown, appressed hairs, Basal leaves long-petiolate (70-200 mm long), sheaths pilose hairy, lamina 30 × 40 mm, dark green, subreniform, ovate, deltoid-ovate, to deltoid-cuneate, ternate or ternatifid, leaflets and lobes usually 3-lobed again and deeply toothed. Cauline leaves similar but smaller, less divided, opposite. Stems elongating to 450 mm tall at fruiting. Stems 1-3-flowered. Flowers 15-20 mm diameter, initially sessile or shortly pedicellate, peduncle and pedicels elongating at fruiting. Sepals 5, 5-8 mm, spreading, Petals 5, 5-8 mm long, yellow or brownish-yellow, narrowly obovate, obovate-oblong to oblong, undersides with sparse appressed hairs; nectary single, c.2 mm from petal base, covered by a small rounded scale. Fruiting heads ovoid to globose, 8-10 mm diameter. Receptacle cylindrical, papillose-hairy. Achenes numerous, flattened, ovoid, to obliquely ovoid, usually sparsely covered with appressed hairs on the angles; body 2-2.5 mm long, beak straight, tapering, flattened, c.1 mm long.
The distinctive long, stiff, appressed yellow-brown (fulvous) hairs, long petioles and small brownish-yellow flowers all readily distinguish R. subscaposus from the glabrescent R. acaulis DC and R. pinguis Hook.f. which are the only other indigenous Ranunculus known to inhabit Auckland and Campbell Islands. From the introduced, R. repens L. which is also on these islands, it is easily distinguished by its smaller size, non-stoloniferous habit, and by its smaller (up to 10 cf. 14 mm long), obovate, obovate-oblong to oblong, rather than broadly obovate, brownish yellow rather than golden-yellow petals
Probably difficult except in an alpine house.
Not Threatened. Listed because it is a narrow range island endemic
ranunculus: From the Latin ‘rana’ frog, meaning little frog and probably refers to the plants typical marshy habit where frogs abound
Where To Buy
Not commercially available
Fact sheet prepared by P.J. de Lange for NZPCN (1 June 2013)
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Ranunculus subscaposus Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/ranunculus-subscaposus/ (Date website was queried)