United States / Grow / Oaks

Oaks Quercus

This hub compares 75 species records. Across all 76 records, it carries 1652 evidence rows from 138 distinct cited sources. The species split is 30 fire-resistant, 6 keep-away, 4 in documented conflict, and 35 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: oak Quercus spp. Fire-resistant Consensus 55 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: 30 species

Scroll for all 30 ↓

Keep away: 6 species

Documented conflict: 4 species

honest ties — treat conservatively near structures

Awaiting evidence: 35 species

Scroll for all 35 ↓

About oaks

Directory notes

Plant forms recorded in this group: tree, shrub. The records span published USDA zones 2–9. These are record-level fields, not a whole-genus flammability claim.

FEIS-reviewed species in this group (2)

Each link is exact-species context. No statement rolls up to every member of Quercus.

Gambel oak · Quercus gambelii · Fuels and condition; Immediate fire effect; Postfire response
Oregon white oak · Quercus garryana · Immediate fire effect; Management considerations; Postfire response

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

Where rated oaks grow

Tagged as growing in 50 states.

An exact Garry oak botanical plate is labeled with source-grounded leaf-lobe and acorn characters. The portrait is not a complete oak key and makes no flammability claim. — FA Exhibit PORT-001. Quercus portrait: Garry oak leaf + acorn. After Sudworth 1908, fig. 125, and USFS FEIS QUEGAR. Public-domain plate. Identification only — no flammability claim. Confirm uncertain material with a regional key or a botanist. CC BY 4.0.

See Quercus on Grow → · JSON