Ranunculus crassipes
Biostatus
Native
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2022-2023 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website. This report includes replaces all previous NZTCS lists for vascular plants. Previous assessments can be found here.
- Conservation status of vascular plants in Aotearoa New Zealand, 2023. 2024. Peter J. de Lange, Jane Gosden, Shannel P. Courtney, Alexander J. Fergus, John W. Barkla, Sarah M. Beadel, Paul D. Champion, Rowan Hindmarsh-Walls, Troy Makan and Pascale Michel Department of Conservation. Source: NZTCS and licensed by DOC for reuse under the Creative Commons Attribution 4.0 International licence.
2023 | Not Evaluated
Category
Vascular
Structural class
Herbs - Dicotyledons other than Composites
Flower colours
Yellow
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.
Distribution
Indigenous. Macquarie Island. Present also on Heard and Kerguelen Islands
Habitat
Common in bogs and seepages across Macquarie island.
Threats
Abundant within its island habitats.
Detailed taxonomy
Genus
Family
Synonyms
None - has been included by some authors within Ranunculus biternatus Sm.
Endemic taxon
No
Endemic genus
No
Endemic family
No
Ecology
Flowering
December - March
Fruiting
February - September
Propagation technique
Unknown from cultivation
Other information
Etymology
ranunculus: From the Latin ‘rana’ frog, meaning little frog and probably refers to the plants typical marshy habit where frogs abound
Chromosome number
2n = 48
Previous conservation statuses
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2022-2023 using the New Zealand Threat Classification System (NZTCS) – more information about this can be found on the NZTCS website. This report includes replaces all previous NZTCS lists for vascular plants. Previous assessments can be found here.
- Conservation status of vascular plants in Aotearoa New Zealand, 2023. 2024. Peter J. de Lange, Jane Gosden, Shannel P. Courtney, Alexander J. Fergus, John W. Barkla, Sarah M. Beadel, Paul D. Champion, Rowan Hindmarsh-Walls, Troy Makan and Pascale Michel 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
2004 | Range Restricted
Referencing and citations
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)