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Harmless💊 Medicinal🪓 Tool

🌲 Northern white-cedar (Eastern arborvitae)

Thuja occidentalis · Cupressaceae

🍁 North America🌲 Boreal
🧠 To remember it“The tree of life saved Cartier” — a tea made from cedar bark and leaves, rich in vitamin C, cured an entire crew from scurvy in just a few days in 1536.
Northern white-cedar (Eastern arborvitae) — Thuja occidentalis

🔍 Identify it without mistakes

Small to medium conifer with flat, fan-shaped foliage of scale-like leaves, aromatic when crushed (resinous scent). Fibrous reddish-brown bark peeling off in long vertical strips. Small erect ovoid cones with few scales. Grows in dense stands ("cedar swamps") on moist, calcareous soils.

  1. flat, fan-shaped foliage with scale-like leaves (not needles)
  2. strong aromatic scent when crushed (resinous, slightly medicinal)
  3. fibrous reddish-brown bark peeling in long vertical strips
  4. small erect ovoid cones (1 cm) with few scales
Size12-20 m (up to 30 m in optimal conditions)
FloweringApril-May (cones)
Habitatmoist and calcareous soils, peat bogs, cool ravines, boreal forest and Great Lakes region, often in dense pure stands

⚠️ Not to be confused with

Eastern redcedar (Juniperus virginiana)aucun

To tell them apart: white-cedar has flat fan-like foliage, while redcedar has sharp needle-like leaves or finer scale-like leaves on rounded branchlets

Western redcedar (Thuja plicata)aucun (les deux utilisés de façon similaire)

To tell them apart: western redcedar is much larger and grows on the Pacific coast, with more fibrous and reddish bark; their native ranges do not overlap

💊 Healing with it

inner bark and leaves are rich in vitamin C, infused into tea by Indigenous peoples of northeastern America to prevent and treat scurvy — this very remedy saved Jacques Cartier's crew in 1536 during his second voyage to Canada, identified as white-cedar by botanist Jacques Rousseau in the 20th century

Level of evidence : traditional, historically confirmed (rapid and documented recovery of Cartier's entire crew) — Wikipédia FR — Thuya occidental (recounts the identification by Jacques Rousseau)

⚠️ essential oil and concentrated preparations contain thujone, which is neurotoxic and abortifacient in high doses — never ingest essential oil, drink light tea only, and never consume if pregnant

🪓 Other bushcraft uses

  • cordage and basketry: the fibrous inner bark peels into long, tough strips, used by Indigenous peoples for cordage, basketry, and weaving mats
  • shingles and posts: wood is highly rot-resistant, a North American benchmark for roofing and fencing — cedar that lasts for decades without treatment
  • boreal tinder: the fibrous, dry outer bark, shredded into fine fluff, catches fire easily even when slightly damp, comparable to birch
  • smudging: burned resin and foliage release an aromatic smoke traditionally used in purification ceremonies by First Nations
  • fine cordage: flexible roots used in fine basketry and for lashing birch bark canoes, similar to spruce roots
  • winter vitamin C: evergreen foliage rich in vitamin C, a reliable anti-scurvy resource even in the depth of boreal winter
  • lightweight paddles: light and soft wood, easy to split into thin boards with an axe to craft paddles and chests
Sources (2)

No entry replaces a certain identification in the field, or medical advice. When in doubt: don't eat it. If ingestion is suspected: poison control or 112/911.