Great Slave Lake East Arm Plant Field Guide | Field Guide

Field Cross-Check and Automatic Stop Rules

Always match at least three reliable sources and completely rule out every dangerous look-alike before using any wild plant.

When compiling documentation in the field, photograph the whole plant, the top and bottom of the leaves, the stem, bark, flowers, fruit, and surrounding habitat. Always include an object for scale, and record the date, precise location, and your level of confidence. Never allow an automated AI label to overrule a regional botanist.

Trees and Woody Plants: Black Spruce

This section covers field identification, practical material properties, and conservation cautions for northern trees and woody plants.

Black Spruce (Picea mariana) is a woody conifer tree native to northern subarctic ecosystems.

Black Spruce Identification and Practical Use

Black spruce features a narrow, spire-like crown, short four-sided blue-green needles, small dark cones that often persist on the branches for years, and scaly gray-brown bark.

Habitat: Muskeg, peatlands, cold wet flats, and thin rocky soils.
Season: Year-round.
Documented Use: Small straight poles, roots, and resinous dry twigs support shelters, lashings, and fire-lighting systems. Lower dead branches frequently remain dry beneath the upper crown even in wet weather.
Look-Alikes: White spruce (Picea glauca) features longer needles, larger cones, and typically establishes on better-drained ground.

White Spruce (Picea glauca) is a larger woody conifer commonly found across boreal forests.

White Spruce Identification and Practical Use

White spruce is characterized by sharp single needles that emit a pungent odor when crushed, larger flexible cones, and a fuller, broader crown than black spruce. The bark is typically lighter and flaky.

Habitat: Well-drained lake terraces, river mouths, slopes, and sheltered valleys.
Season: Year-round.
Documented Use: Provides strong timber poles, roots, and wood suitable for structural frames, carved utensils, and high-heat fuel. Young, flexible roots have a well-documented history of use for cordage, lashings, and basketry.
Look-Alikes: Black spruce cones are markedly smaller and persist on branches for years, unlike the deciduous cones of white spruce.

Trees and Woody Plants: Jack Pine

Field identification, practical material properties, and conservation precautions for boreal pine and deciduous species.

Jack Pine (Pinus banksiana) is a resilient pioneer conifer common in fire-adapted landscapes.

Jack Pine Identification and Practical Use

Jack pine is identified by its short, twisted needles growing two per bundle, an irregular crown, and strongly curved cones that often remain tightly sealed on the branches until opened by heat.

Habitat: Dry sandy ridges, post-fire burn areas, and exposed bedrock outcrops.
Season: Year-round.
Documented Use: Highly resinous dead wood serves as exceptional kindling and rapid fuel. Straight saplings offer lightweight structural poles where harvesting is permitted.
Look-Alikes: Lodgepole pine is similar but generally exhibits longer needles and more symmetrical cones, with range overlaps occurring only locally.

Paper Birch (Betula papyrifera) is a broadleaf deciduous tree recognizable by its peeling, white papery bark.

Region at a Glance

An overview of boreal trees, persistent berries, muskeg hazards, and traditional-use plants of the subarctic shield.

Filming region: East Arm of Great Slave Lake, Northwest Territories, Canada (Alone seasons 6 and 7).
Ecology: Boreal Shield and subarctic taiga featuring exposed bedrock, black spruce muskeg, jack pine, birch, and cold lake shorelines.

The East Arm combines deep cold water, granitic bedrock, thin soils, fire-shaped jack pine woodland, and extensive black spruce wetlands. Plant growth is slow, woody stems are often small, and edible fruit production varies sharply with frost, fire history, and exposure.

Field Priorities

Learn black spruce, white spruce, and jack pine by needles, cones, and site moisture.
Do not dig or taste roots from marshes, sedge beds, or slow water margins.
Use persistent berries only after confirming the whole shrub and fruit crown.
Protect thin organic soils and lichens; travel and harvesting damage can persist for years.
Treat all traditional medicinal uses as cultural documentation, not field prescriptions.

Non-Negotiable Plant Safety

Positive Identification Protocol

Use a repeatable, systematic process. Botanical confidence is built from verifying independent features, never intuition.

1. Place

Record habitat type, moisture levels, slope, elevation, and nearby dominant plant species.

2. Form

Determine overall growth habit: tree, shrub, vine, herb, grass-like plant, fern, or succulent.

3. Leaves

Check leaf arrangement, shape, margins, vein patterns, hairs, odor, and the appearance of the underside.

4. Stem & Bark

Examine the stem and bark for thorns, sap, pith characteristics, lenticels, buds, twig coloration, and texture.

5. Flower & Fruit

Count petals and inspect floral clusters, seed structures, and fruit attachment points.

Sources, Scope, and Limitations

This guide compiles taxonomic, ecological, and ethnobotanical data from the following key scientific and regional references:

Flora of North America North of Mexico (Flora of North America Association) – Comprehensive scientific flora: http://floranorthamerica.org/Main_Page
Plants and Biodiversity Resources of the Northwest Territories (Government of the Northwest Territories) – Regional flora and boreal ecology: https://www.gov.nt.ca/ecc/en/services/biodiversity
Aboriginal Plant Use in Canada's Northwest Boreal Forest (Marles, Clavelle, Monteleone, Tays, and Burns; Canadian Forest Service) – Ethnobotanical documentation: https://publications.gc.ca/site/eng/9.611374/publication.html
Plants of the World Online (Royal Botanic Gardens, Kew) – Global taxonomy and verified distribution: https://powo.science.kew.org/
Canadian Poisonous Plants Information System and Poison-Safety Resources (Agriculture and Agri-Food Canada / Canadian Poison Centres) – Plant toxicology and poison safety: https://infopoison.ca/

Independent Publication Notice

This guide is an independent educational reference and is not affiliated with, endorsed by, or associated with the HISTORY Channel, the Alone television series, local Indigenous governments, or protected-area authorities.

Traditional-use summaries reflect published historical and academic literature and do not transfer cultural authority or harvesting rights. Guidance from local Indigenous knowledge holders, current regional harvest regulations, and qualified botanical or medical professionals must always take precedence.

Seasonal Reality

A late frost, drought, fire, flood, browsing pressure, or poor flowering year can suddenly remove an expected food source. Always build survival and foraging plans around several independent resources, and assume that any given crop may fail.

Look-alike and Hazard Matrix

The most critical plant knowledge is knowing what not to touch, taste, or dig. Familiarize yourself with these toxic species, their distinguishing field cues, and associated safety rules:

Spotted water hemlock: A wetland perennial with divided leaves, white umbrella-shaped flower clusters, and thick chambered roots; leaf veins often terminate between the teeth. Extremely poisonous; the roots are especially dangerous and ingestion can cause severe seizures and death. Do not taste.
Red baneberry: A woodland herb with divided compound leaves, small white flower clusters, and glossy red berries on stout stalks, often marked with a dark dot. Berries and roots are poisonous and affect the gastrointestinal and cardiovascular systems. Children are especially at risk.
Bog rosemary: A low evergreen bog shrub featuring narrow, rolled-edge leaves that are white beneath, accompanied by small pink urn-shaped flowers. Contains grayanotoxin-type compounds; ingestion may cause vomiting, dizziness, and cardiac effects.
Northern monkshood: Identified by deeply divided palmate leaves and dark blue to purple hood-shaped flowers borne on upright stems. All parts contain potent aconitine alkaloids. Ingestion can cause fatal heart and nerve effects, and contact with sap from the roots should be avoided.

Suspected Poisoning Response and Harvest Ethics

When foraging, practice responsible stewardship by adhering to core harvest ethics:

Take the common, leave the rare.
Never girdle a tree when gathering bark.
Avoid harvesting roots and whole plants to preserve populations.
Leave adequate food supplies for wildlife.
Follow all Indigenous and protected-area rules and regulations.
Restore disturbed ground before leaving the harvest site.

Documented Edible Plants: Prickly Rose

Harvest and consume documented wild foods only. Positive species identification and proper, safe preparation remain essential before using any wild plant.

Prickly Rose (Rosa acicularis) is a documented edible northern shrub with notable food value.

Identification: Prickly Rose & Fireweed Introduction

Prickly Rose (Rosa acicularis) is recognized by its prickly stems, alternate compound toothed leaves, pink five-petaled flowers, and bright red oval hips.

Habitat: Open woods, recent burns, shore terraces, and thickets.
Season: Hips are harvestable from late summer through winter.
Documented Use: The flesh of the hip is an established edible once the internal seeds and irritating hairs are removed. The prepared flesh is suitable for simmering or drying.

Fireweed (Chamerion angustifolium) is another prominent documented edible herb found across northern landscapes.

Identification: Fireweed

Fireweed (Chamerion angustifolium) is a tall, colony-forming perennial herb featuring narrow, willow-like leaves, vivid magenta four-petaled flowers, and elongated seed capsules that split to release silky fluff.

Habitat: Burn sites, gravel shorelines, disturbed campsites, and forest openings.
Season: Young shoots appear in spring; flowers bloom throughout summer.
Documented Use: Young shoots and tender leaves have documented food uses following positive identification and cooking. Dried seed fluff and fibrous stalks provide material for craft applications.

Toxic Plants to Avoid: Spotted Water Hemlock

Familiarize yourself with high-consequence toxic species before conducting any foraging or harvesting activities in the field.

Spotted Water Hemlock (Cicuta maculata) is a deadly poisonous wetland species that must be identified and avoided at all costs.

Identification: Spotted Water Hemlock & Red Baneberry Introduction

Spotted Water Hemlock (Cicuta maculata) is a wetland perennial bearing divided leaves, umbrella-shaped clusters of tiny white flowers, and thick, chambered rootstocks. A key diagnostic feature is that the leaf veins terminate in the notches between the teeth rather than at the tips.

Habitat: Marshes, wet meadows, stream mouths, and sedge margins.
Season: Active growth from spring through autumn.
Documented Use: None. Establish an absolute no-root-harvest zone in wet ground.

Red Baneberry (Actaea rubra) is another high-consequence toxic woodland plant to recognize and strictly avoid.

Identification: Red Baneberry

Red Baneberry (Actaea rubra) is an erect woodland herb characterized by divided compound leaves, dense clusters of small white flowers, and glossy scarlet berries borne on stout stalks, often featuring a distinct dark dot at the tip.

Habitat: Moist spruce-birch woodlands, rich forest slopes, and shaded streambanks.
Season: Berries mature in late summer.
Documented Use: No food or edible use.

Toxic Plants to Avoid

High-consequence toxic species must be recognized before any gathering begins. Never harvest or ingest unfamiliar northern plants without positive identification.

A primary species of concern in northern wetland environments is Bog Rosemary (Andromeda polifolia), an evergreen shrub containing dangerous toxins.

Identifying Bog Rosemary

Bog Rosemary (Andromeda polifolia) is a low evergreen shrub found in peatlands, characterized by narrow leaves with rolled edges that are distinctly white on the underside, along with small, pink, urn-shaped flowers.

Habitat and Season: Sphagnum bogs and peatland hummocks. Leaves persist year-round; flowers bloom in early summer.
Documented Use: None. There is no safe food or tea use for this plant.
Look-Alikes: Labrador tea, which has broader leaves with rusty-haired undersides and terminal clusters of white flowers.

Another high-consequence toxic plant found in northern regions is Northern Monkshood (Aconitum delphiniifolium).

Identifying Northern Monkshood

Northern Monkshood (Aconitum delphiniifolium) is an erect perennial featuring deeply divided palmate leaves and distinctive dark blue to purple hood-shaped flowers carried on upright stems.

Habitat and Season: Moist tundra, streambanks, mountain meadows, and rich open forests during the summer months.
Documented Use: None. There is no safe food or medicinal use.
Look-Alikes: Larkspur flowers feature a distinct rear spur; note that both species are unsafe to consume.

Traditional-Use Plants

This section documents published cultural and historical plant applications. These records are provided for educational reference and do not constitute prescriptions or dosing instructions.

One of the most widely documented species with a history of cultural harvesting is Labrador Tea (Rhododendron groenlandicum).

Identifying Labrador Tea

Labrador Tea (Rhododendron groenlandicum) is an evergreen shrub identifiable by its narrow, leathery leaves with downward-rolled margins and densely rusty-woolly undersides, topped by clusters of white flowers.

Habitat and Season: Muskeg, wet spruce forests, and peatland margins. Leaves are present year-round; flowering occurs in early summer.
Documented Use: A culturally important plant with documented traditional use as a beverage and for other cultural practices.
Look-Alikes: Bog rosemary has narrower leaves that are pale white beneath rather than rusty-woolly.

Another plant with an extensive record of traditional use is Yarrow (Achillea millefolium).

Identifying Yarrow

Yarrow (Achillea millefolium) is an aromatic perennial with finely divided, feathery foliage and flat-topped clusters of small white to pink flower heads.

Habitat and Season: Dry shore gravel, trail margins, burn sites, and disturbed soils, flowering from summer through autumn.
Documented Use: Published traditional applications include external washes and aromatic preparations. Fully dried flower tops can also serve as light tinder for fire-starting.
Look-Alikes: Poison hemlock grows much taller, with hollow purple-spotted stems and umbrella-shaped flower clusters.

Identify: Bog Cranberry / Lingonberry

Bog Cranberry (Lingonberry) is a low evergreen shrub characterized by leathery oval leaves with pale, dotted undersides, pink urn-shaped flowers, and bright red berries.

Habitat: Open spruce forests, rocky heaths, and bog hummocks.
Season: Late summer through winter; ripe berries often persist beneath early snow.
Documented Use: Ripe berries are a documented food source and can be cooked, dried, or eaten fresh after cleaning.
Look-Alikes: Bearberry fruit is drier and mealy, and its leaves feature netted veins without pale dots on the underside.

Identify: Bog Blueberry (Vaccinium uliginosum)

Bog Blueberry (Vaccinium uliginosum) is a low woody shrub featuring blue-green oval leaves, pink urn-shaped flowers, and blue berries covered in a waxy bloom and topped with a persistent crown.

Habitat: Muskeg hummocks, tundra-like heaths, and moist open forest.
Season: Late summer.
Documented Use: Ripe berries are a documented edible food and serve as an important seasonal resource.
Look-Alikes: Bilberry has green angular stems and typically darker juice, while black-berried herbaceous plants lack woody stems.

Documented Edible Plants: Safety & Overview

Only harvest and consume plants with documented food uses. Positive botanical identification and safe preparation methods remain essential prior to collecting or using wild species.

Identify: Crowberry (Empetrum nigrum)

Crowberry (Empetrum nigrum) is a mat-forming evergreen shrub with tiny needle-like leaves that are distinctly grooved beneath, bearing shiny black berries nestled closely along the stems.

Habitat: Rocky heaths, windswept shorelines, bog margins, and open spruce woodland.
Season: Late summer through winter; berries frequently persist after frost.
Documented Use: Ripe berries are a documented food that is water-rich and mild in flavor.
Look-Alikes: Juniper features sharper leaves arranged in whorls and blue cones with a powdery bloom, whereas crowberry fruit is glossy black.

Identify: Cloudberry (Rubus chamaemorus)

Cloudberry (Rubus chamaemorus) is a low, unarmed plant bearing a single rounded, lobed leaf per flowering stem and producing a solitary amber-orange, raspberry-like aggregate fruit.

Habitat: Peatlands, bog edges, and wet tundra-like openings.
Season: Mid- to late summer.
Documented Use: Fully ripe amber fruit is a prized documented food that can be consumed fresh or cooked.
Look-Alikes: Dwarf raspberry species may have red fruit and more divided leaves; cloudberry fruit is solitary and turns amber when ripe.

Birch Identification and Uses

Birch is identified by its white peeling bark marked with dark horizontal lenticels, oval doubly toothed leaves, and hanging catkins.

Habitat & Season: Burns, lake terraces, sheltered slopes, and mixed forests. Bark and wood are harvestable year-round.
Documented Use: Loose dead bark provides dependable tinder and short-term waterproofing material. The wood carves easily and burns hot when dry.
Look-Alikes: Aspen bark is smooth and greenish-gray, and it does not peel off in papery sheets.

Trees and Woody Plants

This section covers botanical identification, practical material properties, and conservation cautions for northern trees and woody species.

Featured species introduction: Tamarack (Larix laricina), a woody coniferous tree.

Tamarack Identification and Uses

Tamarack is distinguished by soft needles arranged in clusters on short spur shoots, small upright cones, and bright yellow autumn foliage that sheds before winter.

Habitat & Season: Fens, muskeg margins, and wet lowlands. Wood is harvestable year-round; needles are present from spring through fall.
Documented Use: Rot-resistant poles and roots have documented traditional applications in snowshoes, structural frames, and lashings. Seasoned dry wood serves as durable fuel.
Look-Alikes: Spruces retain their needles throughout the winter and bear sharp, single needles rather than clustered spur needles.

Next entry: Balsam Poplar (Populus balsamifera), a deciduous woody tree.

Balsam Poplar Identification and Uses

Balsam poplar is a tall river-valley tree featuring pointed oval leaves with pale undersides, resinous sticky buds that emit a distinct fragrance, and gray bark that becomes deeply furrowed with age.

Habitat & Season: Floodplains, river mouths, lakeshore benches, and moist valleys. Sticky buds are collected from late winter to spring; wood is available year-round.
Documented Use: The lightweight wood serves well for carving and provides quick fuel. Aromatic buds have documented traditional external preparations.
Look-Alikes: Trembling aspen features rounder leaves with flattened leaf stalks that flutter in light wind, while willows bear distinctly narrower foliage.

Documented Edible Plants

This section covers verified wild food species. Positive botanical identification and safe preparation remain essential before foraging.

Featured entry: Lingonberry / Mountain Cranberry (Vaccinium vitis-idaea), a documented edible dwarf shrub.

Traditional-Use Plants: Willow Overview

Willow (Salix species) represents a vital group of traditional-use woody plants widely utilized throughout northern boreal and tundra environments for utilitarian crafts and historical preparations.

Identification: Willow (Salix spp.)

Woody shrubs or small trees characterized by alternate, narrow leaves, flexible twigs, and catkins. Species-level identification within the genus can be difficult.

Habitat: Shorelines, wet thickets, river mouths, and tundra valleys.
Season: Twigs are present year-round; catkins appear in spring.
Documented Use: Flexible stems are used for crafting baskets, wattle structures, and light bindings. Published traditional uses include bark preparations related to salicylates.
Look-Alikes: Dwarf birch has round, toothed leaves rather than narrow foliage. Alder bears woody, cone-like female catkins.

Identification: Common Juniper (Juniperus communis var. depressa)

A low, spreading evergreen shrub with stiff, sharp needles arranged in whorls of three, each bearing a distinct pale band, and producing blue-black berry-like cones.

Habitat: Dry rocky ridges, open pine forest, and exposed shore terraces.
Season: Cones persist from late summer through winter.
Documented Use: Small amounts of ripe cones have documented culinary and traditional uses. Resinous twigs can scent smoke, though they should not serve as primary fuel.
Look-Alikes: Crowberry features softer, tiny leaves tightly pressed against creeping stems and produces glossy black berries.

Seasonal and Habitat Planning

Seasonal Observation Phases:

Spring / Thaw: New shoots, flowers, catkins, and wetland hazards become visible. Field emphasis: Learn leaves and flowers before fruit; avoid roots and bulbs.
Summer / Peak Growth: Maximum foliage; most edible greens and traditional-use herbs are identifiable. Field emphasis: Photograph multiple traits; note habitat and abundance.
Autumn / Fruit & Frost: Most berries, hips, cones, and seed structures mature. Field emphasis: Confirm the entire plant; leave food for wildlife and regeneration.
Winter / Persistent: Evergreen shrubs, bark, twigs, cones, and persistent fruit remain. Field emphasis: Rely on woody traits, as snow and frost obscure herbaceous identification.

Habitat Forecast and Environmental Risks:

Dry ridge / exposed slope: Commonly hosts Black spruce, White spruce, and Jack pine. Primary risks include windthrow, fire hazards, and disturbing slow-growing protected plants.
Moist forest / sheltered valley: Commonly hosts Paper birch, Tamarack, and Balsam poplar. Primary risks include confusing look-alikes, falling timber, and poor visibility.
Wetland / peat / stream edge: Commonly hosts Spotted water hemlock and Red baneberry. Primary risks include lethal water hemlock or toxic bog shrubs, alongside unstable ground.
Open disturbance / camp edge: Commonly hosts Lingonberry (mountain cranberry), Bog blueberry, Crowberry, and Cloudberry. Primary risks include chemical contamination, invasive species, and exposure to human pollutants.