FireApproved

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Spruces Picea

Most rated Picea records are keep-away — 7 of 11 records, including the genus rated as a group. These counts describe the cited records — 11 records carrying 220 evidence rows from 33 cited sources; they do not make one verdict for the genus.

Rated as a group: Spruce Picea sp. Keep away Limited evidence 7 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

1 species

Keep away

6 species

Awaiting evidence

3 species

About spruces

Corpus context. Picea is the directory's #51 largest of 550 genus groups: 11 records carrying 220 evidence rows from 33 cited sources, recorded as tree , hardy across USDA zones 1–7. Those are corpus facts, not a whole-genus flammability claim.

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

Where rated spruces grow

Tagged as growing in 31 states.

Two sourced specimen panels compare the four-sided needles of Engelmann spruce with the flattened needles of subalpine fir. A schematic section shows why the spruce needle rolls between fingertips while the fir needle stays flat.
FA Exhibit ID-003. Spruce or fir: roll a needle. Morphology from USFS FEIS PICENG and ABILAS. Specimens after Sudworth 1908, figs. 29 and 38, public domain. Identification only — no flammability claim. Confirm uncertain material with a regional key or a botanist. CC BY 4.0.

See Picea on Grow → · JSON