FireApproved

United States / Grow / Brooms

Brooms Cytisus

This hub compares 5 species records. Across all 6 records, it carries 100 evidence rows from 23 distinct cited sources. The species split is 2 fire-resistant, 1 in documented conflict, and 2 awaiting directional evidence. 1 genus-rank record is shown separately; genus-rank claims do not override a species record, and species evidence does not become one verdict for the genus.

Rated as a group: broom Cytisus sp. Keep away Majority — dissent on page 4 sources rate the genus as a whole. Species evidence never rolls upward into a genus verdict, and genus claims never override a species record. ›

Fire-resistant: 2 species

Documented conflict: 1 species

honest ties — treat conservatively near structures

Awaiting evidence: 2 species

About brooms

Directory notes

Plant forms recorded in this group: shrub. The records span published USDA zones 5–7. Recorded trait flags: 1 carry fine fuels flags; 1 carry invasive risk flags — each cited on its page. These are record-level fields, not a whole-genus flammability claim.

More about Cytisus: Wikipedia — external references; not evidence sources.

Where rated brooms grow

Tagged as growing in 29 states.

Equal-weight public-domain botanical specimens compare Scotch broom with common gorse. Mature gorse has a dense armature of stiff spines, while Scotch broom has slender green stems and small one- or three-foliolate leaves.
FA Exhibit ID-007. Scotch broom or gorse: yellow flowers, different armature. Morphology from USFS FEIS CYTSPP and ULEEUR. Plates: Thomé 1885, exact-species public-domain scans. Identification only — no flammability claim. Confirm uncertain material with a regional key or a botanist. CC BY 4.0.

See Cytisus on Grow → · JSON