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Low toxicity🍽️ Edible

🦌 Reindeer lichen (cladonia)

Cladonia rangiferina · Lichens (Cladoniaceae)

🌲 Boreal
🧠 To remember it“What the reindeer eats, humans barely digest” — this lichen remains primarily cervid fodder, a last-resort human food.
Reindeer lichen (cladonia) — Cladonia rangiferina

🔍 Identify it without mistakes

Fruticose lichen (shrubby, not a plant) forming dense grayish-white to grayish-green tufts, highly branched like tiny antlers or coral, carpeting the ground across vast expanses of tundra and open taiga. Spongy and elastic texture when wet, brittle and crunchy when dry.

  1. highly branched shrubby habit resembling miniature coral
  2. characteristic grayish-white color
  3. carpets the ground in huge continuous mats
  4. spongy texture when wet, brittle when dry
Size5-10 cm high
Floweringdoes not flower (lichen)
Habitatopen tundra and open boreal forest (pine woods, lichen spruce woods), poor and acidic soils of the circumpolar far North

⚠️ Not to be confused with

No known dangerous look-alikesaucun

To tell them apart: the highly branched shrubby habit resembling miniature coral and the grayish-white color forming continuous mats on the ground distinguish this lichen from any dangerous species; preparation (soaking and long cooking) remains mandatory nonetheless

🍽️ Eating it

Partsentire thallus
Seasonavailable year-round, including under the snow
Tastevery bitter raw, bland and slightly mucilaginous after long cooking

Preparation : soaking then long cooking to soften and remove bitter acids (notably usnic acid); traditionally consumed pre-digested from reindeer stomachs by some Indigenous peoples, who thus harvested a partially broken down and more digestible food

🪓 Other bushcraft uses

  • essential winter food for reindeer and caribou, which detect it under the snow using their sense of smell and clear it by digging with their hooves — a cornerstone of the entire Sámi pastoral economy
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.