FA Exhibit ID-001. One species stands for each genus; identify by spray form and cone type, never by bark or the common name. Claims quoted from USFS FEIS species reviews (Scher 2002, Juniperus scopulorum; Tesky 1992, Thuja plicata). Specimen art traced from public-domain USDA plates — Bulletin 207 (1915) Plate IX and Sudworth, Forest Trees of the Pacific Slope (1908), Fig. 60 — via Internet Archive / Wikimedia Commons. Identification only — no flammability claim. Confirm uncertain material with a regional key or a botanist. CC BY 4.0.
Technical review: Grayson Graham. Last verified 2026-08-24. JSON
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<img src="https://fireapproved.com/diagrams/id-001-juniper-or-redcedar.svg" alt="Two-panel identification comparison. Left, a Juniperus scopulorum branch traced from a 1915 USDA plate — rounded three-dimensional sprays with round berry-like cones ringed in accent. Right, a Thuja plicata branch traced from Sudworth's 1908 plate — flattened fanlike sprays with a cluster of small open cones ringed in accent. A bottom band notes that bark does not distinguish the two." />
