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Supplejack is rated fire resistant, though the conclusion rests on limited primary evidence.
Fire and Emergency New Zealand classified the vine as having low flammability in 2026. Low flammability is one band above very low in the service’s seven-level classification and qualifies for a recommendation. A 2016 International Journal of Wildland Fire study also placed supplejack shoots in its low/moderate cluster after the samples were air-dried for 24 hours before testing. The study’s six-category scale puts that cluster on the recommended side as well.
A global plant-traits database adds a narrower result: supplejack branches had an ignition frequency of 50 percent in a grill test using predried fuel. That figure describes how often the tested material ignited under that particular setup. FLAMITS retains each observation’s test context without imposing a common flammability threshold, so the ignition measurement does not overrule the two classifications.
Supplejack is a vine in the Ripogonaceae family. Its fire-resistant rating is supported by two compatible shoot-flammability classifications, while the measured ignition frequency provides useful context rather than a conflicting judgment.
Form
vine
Region
New Zealand
Rated in
Global; New Zealand
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence
Evidence regions
Global; New Zealand
Maintenance
2. Why this plant is relevant here
State distribution
Native range
Introduced / established
USDA hardiness
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
Broader regional context
Federal context
How to read this page
The status above is computed from the cited rows below: independent recommendations can support a fire-resistant result, an avoid row can produce keep-away, and disagreement stays visible as conflict. Placement notes preserve each source’s own scheme rather than translating unlike rules into one scale. This is evidence about a plant, not permission to plant it in every part of the defensible space; Zone 0 remains noncombustible.
The evidence
Grouped by what each source concluded. Primary evidence rated the plant itself
(a lab, field program, or original curation); corroboration compiled or
republished another source's rating and resolves to its root lineage.
Recommends (2)
Low Flammability Plants directory — Fire and Emergency New Zealand (plant flammability testing at Lincoln University) · 2026 · original sourcePrimary evidenceLab-testedlineage: lincoln-nz-tree
8 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
Shared row context: plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND.
“ignition frequency (%): 50”
FLAMITS record 1494; Ignitability measurement.
“maximum sample temperature (°C): 213.5”
FLAMITS record 1688; Combustibility measurement.
“burning duration (s): 1.9”
FLAMITS record 1882; Sustainability measurement.
“estimated burnt biomass (%): 5”
FLAMITS record 2076; Consumability measurement.
Primary study Wyse2016: Wyse, S. V., Perry, G. L. W., O'Connell, D. M., Holland, P. S., Wright, M. J., Hosted, C. L., ... Curran, T. J. (2016). A quantitative assessment of shoot flammability for 60 tree and shrub species supports rankings based on expert opinion. International Journal of Wildland Fire, 25, 466-477.
Shared row context: plant part branches; fuel all; predrying yes; device grill; site Wyse2016-1; sampling ND.
