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Caucasian alder carries an avoid recommendation. The Alnus subcordata pack remains limited evidence in the evidence table, and Valette 1990 supplies the selected lineage for mediterranean forest species.
Same-form alternatives appear under related plants, providing a comparison without changing the direction computed for subcordata. The genus page gathers other alder records but does not lend their evidence to this one. Return to the evidence table for the cited row and limited pack; the alternative set and genus index serve different reader jobs around that boundary. The recommendation remains attached to the Caucasian alder entry.
Highly flammable — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence
Evidence regions
Global; Mediterranean France / Provence
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.
2 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Valette1990: Valette, J.-C. (1990). Flammabilities of Mediterranean forest species. Effects on the combustibility of the forest communities inflammabilités des espèces forestières méditerranéennes. Conséquences sur la combustibilité des formations forestières. Revue forestière française, 42, 76-92.
Shared row context: Ignitability measurement; plant part leaves; fuel live; predrying no; device epiradiator; site Valette1990-1; sampling june to september.
