FA Exhibit ID-005. Arborvitae or falsecypress: read the cone. Morphology from USFS FEIS THUOCC and CHATHY with USFS Silvics of North America. Specimens after Britton & Brown 1913, vol. 1, p. 65, public domain. 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 2026-08-25. JSON
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<img src="https://fireapproved.com/diagrams/id-005-arborvitae-or-falsecypress.svg" alt="Equal-weight public-domain botanical specimens compare northern white-cedar or eastern arborvitae with Atlantic white-cedar or falsecypress. Both have scalelike foliage; oblong versus spherical mature cones separate these two named species." />
