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Cytisus carries an avoid result in the evidence table. The cited scope is a genus-rank umbrella record, so that result remains attached to the published genus evidence instead of being silently copied to every broom species.
The source rows preserve the rank behind the recommendation. If an umbrella-level avoid result changes the planting plan, related plants provides cited same-form alternatives with evidence on their own records. The genus picker keeps the individual pages distinct from this broader source position. This clearly keeps the avoid scope readily reviewable at a glance.
City of Ashland (OR footprint); partial normalized coverage · 2026-08-26
This is a City of Ashland adoption fact, not statewide Oregon guidance or an experimental flammability result. FireApproved publishes 24 taxonomy-safe owners as city-level regulatory context. It applies to new planting and propagation within 30 feet of structures, including structures on adjacent lots; it is not projected as a blanket removal order for every established listed plant.
Yavapai County (AZ footprint); partial normalized coverage · 2025-03-14
University of Arizona Cooperative Extension authors Bulletin 34 for Yavapai County. FireApproved publishes 198 exact source owners from its resistant and prone tables and keeps the county boundary visible. County publication scope is regional Arizona context, never statewide scope.
2. Why this plant is relevant here
State distribution
Documented in AZ.
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.
Where its sources say to plant it
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.
Prohibited Flammable Plants: new planting or propagation restricted within 30 ft of any structure [Ashland Municipal Code setback] (with its avoid rating)
Selective Shrub Management to Preserve Mediterranean Fore…: selectively control in fuel-management bands in mainland Portugal [portugal-selective-fuel-band-control] (with its avoid rating)
Guía de pirojardinería: suitable inside or outside the 25-metre maximum-risk zone [girona-2020-iuf-25m-suitability] (with its recommendation)
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.
Cytisus spp. is rated “MUY RECOMENDADA” by the guide's qualitative IUF garden-suitability method. The method assumes species-specific care and integrates fire evidence with fuel structure, maintenance, origin, invasiveness, and expert fire-service experience.
Table 2 places this genus in the Control column. The authors describe the control group as heliophilous vegetation associated with fine fuels and traits linked to faster combustibility or greater flammability; this is a selective fuel-band management decision, not a global prohibition.
Listed as Broom — Cytisus sp.. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.
