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Rubus ulmifolius is represented by a Tlemcen plant-grouping study of fire risk in associations with Cistus in western Algeria. The selected material was green, with that context retained under performance conditions.
The common bramble record carries an avoid recommendation in the evidence table, while the source pack remains limited evidence. The record includes three ecological invasive reports alongside those fire-related facts.
Same-form alternatives are cited under related plants. They provide comparisons without transferring that study, green condition, avoid conclusion, or ecological reports to a different species outside this individual bramble record and its accepted pack.
7 sourced range or established records. This is not an invasive warning.
USDA hardiness
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
3 ecological invasive reports.
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.
Native and introduced range evidence
These are exact U.S. botanical-area records from the cited range source. Native and
introduced describe biogeographic relationship, not fire performance or planting approval.
Doubtful and extinct rows stay visible but do not count as current presence.
The lossless worldwide derivative is retained once in the research corpus; object pages repeat only exact U.S. areas needed by the local lens. The JSON twin carries the same page assertions.
Conditions in the fire evidence
These describe tested or rated plant material. They are not horticultural maintenance instructions.
Placement rules below use each source's own distances or named zones, tied to its rating.
They are not interchangeable with the directory's current Zone 0 guidance.
The fire risk of the plant groupings with Cistus in the a…: Table 1 [henaoui-2013-fresh-material-flammability] (with its avoid rating)
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.
16 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Henaoui2013: Henaoui, S. E. -A., Bouazza, M., & Amara, M. (2013). The fire risk of the plant groupings with Cistus in the area of Tlemcen (Western Algeria). European Scientific Journal, 9, 84-103.
Shared row context: plant part twigs; fuel live; predrying yes; device infrared burner; site Henaoui2013-1; sampling spring.
“flame height (cm): 35.13”
FLAMITS record 4898; Combustibility measurement.
“time to flaming (s): 38.24”
FLAMITS record 4936; Ignitability measurement.
“burning duration (s): 96.28”
FLAMITS record 4974; Sustainability measurement.
Primary study Madrigal2011a: Madrigal, J., Guijarro, M., Hernando, C., Díez, C., & Marino, E. (2011a). Effective Heat of Combustion for Flaming Combustion of Mediterranean Forest Fuels. Fire Technology, 47, 461-474.
Shared row context: plant part twigs; fuel live; predrying no; device calorimeter; site Madrigal2011a-1; sampling ND.
FLAMITS record 7922; Combustibility measurement; sampling ND.
“time to flaming (s): 11.64”
FLAMITS record 9714; Ignitability measurement; plant part leaves; fuel live; predrying no; device muffle furnace; site Murray2013-1; sampling march to april. Primary study Murray2013: Murray, B. R., Hardstaff, L. K., & Phillips, M. L. (2013). Differences in leaf flammability, leaf traits and flammability-trait relationships between native and exotic plant species of dry sclerophyll forest. PLoS One, 8, e79205.
