Ranunculus crassipes
Synonyms
None - has been included by some authors within Ranunculus biternatus Sm.
Family
Ranunculaceae
Flora category
Vascular – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Herbs - Dicotyledons other than Composites
Chromosome number
2n = 48
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) – 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.
Please note, threat classifications are often suggested by authors when publications fall between NZTCS assessment periods – an interim threat classification status has not been assessed by the NZTCS panel.
- Conservation status of New Zealand indigenous vascular plants, 2017 . 2018. 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. Department of Conservation. Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2009 | At Risk – Naturally Uncommon | Qualifiers: RR
Previous conservation status
2004 | Range Restricted
Distribution
Indigenous. Macquarie Island. Present also on Heard and Kerguelen Islands
Habitat
Common in bogs and seepages across Macquarie island.
Detailed description
Perennial, glabrous, stoloniferous herb. Leaves including petioles 15-50(-150) mm long; lamina 3-12 mm diameter; dark green to bronze green, lobes acute 2-5-toothed. Flowers solitary; scape short, fleshy and stout. Sepals 5, 4.5-6 mm long. Petals 5-7, 4.5-5.5. mm long, yellow, oblanceolate to obovate-spathulate. Stamens numerous, 1.7-3 mm long. Carpels 12-20, glabrous. Achenes 1.5-1.7 mm long (excluding style), reddish-purple, turgid and smooth.
Similar taxa
Differs from Ranunculus biternatus Sm., by the typically much thicker ternate or ternatifid rather than biternate or biternatifid leaves.
Flowering
December - March
Flower colours
Yellow
Fruiting
February - September
Propagation technique
Unknown from cultivation
Threats
Abundant within its island habitats.
Etymology
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
Attribution
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 crassipes Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/ranunculus-crassipes/ (Date website was queried)