Patagonia & Nahuel Huapi Plant Field Guide

Region AT A Glance

Coihue forest, Patagonian berries, toxic invaders and traditional-use plants of the Andean lakes.

Filming region: Andean lake district near Nahuel Huapi National Park, northern Patagonia, Argentina Alone season(s): 3 Ecology: Valdivian and North Patagonian forest, Andean foothills, lake margins, steppe transition and disturbed homesteads

The Season 3 region sits where wet Andean forest meets colder mountain slopes and dry Patagonian steppe. Nothofagus forests, cypress woodland, bamboo thickets and berry-producing shrubs can occur within a short walk, but elevation, fire history and exposure strongly change what is present. Several European toxic plants are now naturalized around roads, old farms and settlements.

Field Priorities

• Separate the major southern beeches by leaf size, bark, elevation and whether foliage is evergreen or deciduous.
• Treat all white-flowered carrot-family plants as unsafe until a local expert rules out poison hemlock.
• Learn calafate and michay as whole shrubs, not just as dark berries.
• Do not harvest culturally important medicinal shrubs without local permission and conservation review.
• Cold rain and ash-colored bark make visual identification harder; use multiple traits and a hand lens.

Non-negotiable Plant Safety

Never consume a plant from one photo, one common name or one guide. Positive identification requires multiple traits and a reliable regional source. Do not experiment with medicinal dosing. For suspected poisoning, remove plant material from the mouth, preserve a sample or photo, contact emergency services or a poison centre, and do not induce vomiting unless directed.

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Positive Identification Protocol

Use a repeatable process. Confidence is built from independent features, not intuition.

1 1. Place

Record habitat, moisture, slope, elevation and nearby dominant plants.

2 2. Form

Decide tree, shrub, vine, herb, grass-like plant, fern or succulent.

3 3. Leaves

Check arrangement, shape, edge, veins, hairs, odor and underside.

4 4. Stem & Bark

Look for thorns, sap, pith, lenticels, buds, twig color and texture.

5 5. Flower / Fruit

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

6 6. Cross-check

Match at least three reliable sources and rule out every dangerous look-alike.

AUTOMATIC STOP LIST DOCUMENTATION KIT

No tasting to identify. Photograph whole plant, leaf top and bottom, stem, bark, No wetland roots. flowers, fruit and habitat. Add a scale object. Record date, No unknown white umbels. location and confidence. Never let an AI label overrule a No unknown bulbs. regional botanist. No unknown milky sap. No medicinal experiments.

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Trees and Woody Plants

Identification, practical material properties and conservation cautions.

COIHUE TREE / WOODY

Nothofagus dombeyi

Identify

Large evergreen southern beech with small glossy serrated leaves, dark scaly bark and tiny cupules holding three nuts; crown remains green through winter. HABITAT & SEASON Moist lower mountain slopes, lake shores and stream valleys. Season: Year-round DOCUMENTED USE Dense wood can provide durable poles and long-burning fuel when seasoned. Fallen bark and branches shelter dry tinder under wet conditions. CAUTION Do not cut living old trees in protected areas. Nothofagus nuts are small and not a dependable calorie source. LOOK-ALIKES Lenga and nire are deciduous; coihue leaves are generally smaller, darker and persistent.

LENGA TREE / WOODY

Nothofagus pumilio

Identify

Deciduous southern beech with small oval leaves, rounded paired lobes along the margin and copper-red autumn color; often wind-shaped near treeline. HABITAT & SEASON Cool upper slopes, snow belts and subalpine forest. Season: Spring through fall foliage; wood year-round DOCUMENTED USE Hard wood is useful for stakes, wedges and fuel. The species marks colder, snowier sites and can help interpret elevation and exposure. CAUTION Krummholz forms may be rooted and twisted; do not assume small stems are safe structural poles. Protected forests require permits. LOOK-ALIKES Nire leaves are usually smaller and more variable, and the tree favors wetter flats or steppe margins.

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Trees and Woody Plants

Identification, practical material properties and conservation cautions.

NIRE TREE / WOODY

Nothofagus antarctica

Identify

Deciduous small tree or shrub with irregularly toothed, often crinkled leaves; gray bark; highly variable wind-pruned form. HABITAT & SEASON Wet flats, frost hollows, bog margins and the forest-steppe transition. Season: Spring through fall DOCUMENTED USE Flexible small stems can serve as light wattle, pegs and brush windbreaks where collection is legal. Dry wood is useful fuel. CAUTION Nire thickets can conceal boggy ground and deadfall. Do not cut living shrubs needed for bank stabilization. LOOK-ALIKES Lenga is usually taller at comparable age and has more evenly lobed leaves.

CORDILLERAN CYPRESS TREE / WOODY

Austrocedrus chilensis

Identify

Narrow conifer with flattened sprays of tiny scale leaves, reddish fibrous bark and small oval cones; crown often columnar. HABITAT & SEASON Drier rocky slopes and the eastern Andean forest margin. Season: Year-round DOCUMENTED USE Aromatic, decay-resistant wood has traditional construction value and makes durable small stakes from deadfall. CAUTION Populations have been affected by disease and fire; harvesting may be restricted. Do not confuse scale foliage with ornamental cypress near settlements. LOOK-ALIKES Arrayan has smooth cinnamon bark and broad leaves; coihue has toothed leaves, not scales.

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Trees and Woody Plants

Identification, practical material properties and conservation cautions.

ARRAYAN TREE / WOODY

Luma apiculata

Identify

Evergreen tree with exceptionally smooth cinnamon-orange bark that peels in patches; opposite glossy leaves; white brush-like flowers and dark berries. HABITAT & SEASON Moist lake margins, sheltered forest and streambanks. Season: Year-round leaves; flowers summer; fruit late summer to fall DOCUMENTED USE Hard fine-grained wood is suitable for small carved tools from deadfall. Bark color makes the tree an excellent landmark. CAUTION Arrayan groves are protected in several parks. Do not strip bark or cut living wood. Fruit edibility varies in published accounts and is not recommended here without local confirmation. LOOK-ALIKES Maiten has alternate leaves and gray bark; myrtle relatives share opposite leaves but not the same smooth orange trunk.

CHILEAN FIREBUSH / NOTRO TREE / WOODY

Embothrium coccineum

Identify

Small evergreen or semi-evergreen tree with narrow leathery leaves and brilliant red tubular flower clusters; dark bark and open branching. HABITAT & SEASON Forest openings, burned ground, lake shores and rocky slopes. Season: Flowers spring to early summer DOCUMENTED USE Light wood and straight branches can be used for small non-load-bearing camp projects where legal. Flowers are a strong seasonal landmark. CAUTION Proteaceae pollen and sap may irritate sensitive people. Do not use as food or medicine based on flower color. LOOK-ALIKES Escallonia has smaller clustered flowers and toothed leaves; planted ornamentals may resemble notro near towns.

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Documented Edible Plants

Documented foods only. Positive identification and safe preparation remain essential.

MAQUI DOCUMENTED EDIBLE

Aristotelia chilensis

Identify

Evergreen shrub or small tree with opposite-to-subopposite toothed leaves, reddish petioles and clusters of small deep purple berries. HABITAT & SEASON Forest edges, disturbed clearings, streambanks and second growth. Season: Late summer through fall DOCUMENTED USE Ripe berries are documented food and can be eaten fresh, cooked or dried after confident identification. CAUTION Dark berries stain strongly and can hide mold. Avoid roadside or sprayed plants. Leaves and concentrated extracts are not automatically safe medicines. LOOK-ALIKES Arrayan berries occur on a tree with smooth orange bark; elder has compound leaves and larger flat fruit clusters.

CALAFATE DOCUMENTED EDIBLE

Berberis microphylla

Identify

Spiny shrub with small leathery leaves in clusters, yellow flowers and blue-black berries with a waxy bloom; usually one to three sharp spines at nodes. HABITAT & SEASON Open forest, rocky slopes, steppe margins and lake terraces. Season: Late summer through fall DOCUMENTED USE Ripe berries are a well-documented Patagonian food, commonly eaten fresh or cooked into preserves. CAUTION Spines cause eye and skin injuries. Confirm the clustered leaves and barberry flower/fruit structure; do not eat unripe fruit or large amounts of other plant parts. LOOK-ALIKES Michay has larger holly-like leaves and often larger flower clusters.

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Documented Edible Plants

Documented foods only. Positive identification and safe preparation remain essential.

MICHAY / DARWIN'S BARBERRY DOCUMENTED EDIBLE

Berberis darwinii

Identify

Dense evergreen spiny shrub with small glossy holly-like leaves, orange-yellow flower clusters and blue-purple berries. HABITAT & SEASON Forest margins, disturbed woodland and moist slopes. Season: Late summer through fall DOCUMENTED USE Fully ripe berries are documented food and can be cooked or strained to remove seeds. CAUTION Sharp three-part spines make harvesting hazardous. Some Berberis species contain alkaloids in roots and bark; this guide recommends only confidently identified ripe fruit. LOOK-ALIKES Calafate leaves are smaller and less holly-like; ornamental barberries may occur near settlements.

CHAURA DOCUMENTED EDIBLE

Gaultheria mucronata

Identify

Low evergreen shrub with tiny pointed leaves and white, pink or purple berry-like fruits; small urn-shaped flowers. HABITAT & SEASON Heaths, open forest, bog edges and windswept slopes. Season: Late summer through winter DOCUMENTED USE Ripe fruits are documented food, usually mild to sweet and useful when other berries are finished. CAUTION Fruit color is highly variable. Confirm the woody evergreen shrub and Gaultheria flowers; avoid plants in contaminated roadside sites. LOOK-ALIKES Pernettya/Gaultheria relatives are similar; local taxonomic treatment may combine several forms.

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Documented Edible Plants

Documented foods only. Positive identification and safe preparation remain essential.

MAGELLAN CURRANT DOCUMENTED EDIBLE

Ribes magellanicum

Identify

Spineless shrub with three- to five-lobed currant leaves, hanging flower clusters and dark purple to black berries. HABITAT & SEASON Moist forest openings, streambanks and cool mountain slopes. Season: Late summer DOCUMENTED USE Ripe berries are documented food and can be eaten fresh or cooked. CAUTION Confirm Ribes leaf shape and hanging fruit clusters. Do not confuse with black-berried nightshades, which have different flowers and unlobed leaves. LOOK-ALIKES Other native currants and gooseberries vary in hairiness and spines; all require local confirmation.

CHILEAN STRAWBERRY DOCUMENTED EDIBLE

Fragaria chiloensis

Identify

Low runner-forming plant with three thick toothed leaflets, white five-petaled flowers and small aromatic red fruits. HABITAT & SEASON Sunny lake terraces, dunes, open forest and disturbed ground in the broader Andean region. Season: Summer DOCUMENTED USE Fully ripe fruit is documented food. Leaves can help locate sandy, well-drained camp edges. CAUTION Fruit is easily contaminated by soil and animal feces; wash or cook. Do not assume every trifoliate groundcover is strawberry. LOOK-ALIKES Cinquefoils often have five leaflets and dry seed heads; strawberry fruit is fleshy with seeds on the outside.

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Toxic Plants - Avoid

High-consequence species to recognize before any gathering begins.

PALQUI TOXIC - AVOID

Cestrum parqui

Identify

Shrub with narrow alternate leaves that smell unpleasant when crushed, clusters of greenish-yellow tubular flowers and dark berries. HABITAT & SEASON Disturbed ground, roadsides, old fields and settlement edges. Season: Spring through fall DOCUMENTED USE No food or medicinal use in this guide. CAUTION All parts are poisonous, especially unripe fruit and foliage; livestock deaths are well documented. Smoke from burning foliage may also be irritating. LOOK-ALIKES Nightshades share tubular flowers but differ in leaf and fruit arrangement. Never identify by odor alone.

DEU / HUIQUE TOXIC - AVOID

Coriaria ruscifolia

Identify

Shrub or climber with opposite small leaves on arching stems and dense dark berry-like fruit clusters. HABITAT & SEASON Forest edges, stream gullies and moist disturbed sites in parts of southern Chile and Argentina. Season: Summer through fall DOCUMENTED USE No survival use. Treat dark clustered fruits on opposite-leaved shrubs as unsafe until this species is excluded. CAUTION Fruit and seeds contain potent neurotoxins and can cause seizures. There is no safe field preparation. LOOK-ALIKES Maqui is a woody shrub with different leaf venation and looser fruit clusters; elder has compound leaves.

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Toxic Plants - Avoid

High-consequence species to recognize before any gathering begins.

FOXGLOVE TOXIC - AVOID

Digitalis purpurea

Identify

Tall spike of purple, pink or white tubular flowers with spotted throats; soft wrinkled basal leaves. HABITAT & SEASON Roadsides, old farms, clearings and other disturbed ground. Season: Late spring through summer DOCUMENTED USE No field medicinal use. CAUTION All parts contain cardiac glycosides and can cause life-threatening heart rhythm changes. Do not make tea, salve or smoke from it. LOOK-ALIKES Comfrey and mullein rosettes can look similar before flowering.

POISON HEMLOCK TOXIC - AVOID

Conium maculatum

Identify

Tall smooth hollow stems commonly blotched purple; finely divided glossy leaves; many white umbrella-shaped flower clusters. HABITAT & SEASON Roadsides, wet ditches, old fields and stream margins near disturbed areas. Season: Spring through fall DOCUMENTED USE No use. Make it a mandatory identification before gathering any wild carrot-family greens. CAUTION Highly poisonous by ingestion. Sap can contaminate hands and tools. Do not burn in a cooking fire. LOOK-ALIKES Wild celery and other Apiaceae can look similar; positive identification requires several structural traits and local expertise.

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Traditional-use Plants

Published cultural or historical uses - not prescriptions or dosing advice.

MATICO TRADITIONAL-USE

Buddleja globosa

Identify

Shrub with opposite lance-shaped gray-green leaves and round orange flower heads made of many tiny tubular flowers. HABITAT & SEASON Sunny streambanks, forest edges and disturbed slopes. Season: Flowers summer; leaves growing season DOCUMENTED USE Published Mapuche and regional traditional uses include external washes and aromatic preparations. CAUTION Traditional use is not proof of safety or clinical effectiveness. Avoid internal use, pregnancy use and application to deep wounds without medical guidance. LOOK-ALIKES Other Buddleja species have elongated flower clusters; matico's round orange heads are distinctive.

PARAMELA TRADITIONAL-USE

Adesmia boronioides

Identify

Low aromatic resinous shrub with small compound leaves and yellow pea-like flowers; strong balsamic scent in warm sun. HABITAT & SEASON Dry rocky slopes and steppe margins east of the forest. Season: Summer DOCUMENTED USE A well-known Patagonian aromatic plant with documented traditional tea and external uses; dry twigs may scent smoke but are not primary fuel. CAUTION Do not self-dose. Essential oils and concentrated infusions may interact with medications or irritate the stomach. Harvest pressure can damage local stands. LOOK-ALIKES Other Adesmia shrubs share yellow pea flowers; scent and leaf structure must be confirmed.

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Traditional-use Plants

Published cultural or historical uses - not prescriptions or dosing advice.

NALCA / GIANT RHUBARB TRADITIONAL-USE

Gunnera tinctoria

Identify

Huge rough round leaves on thick prickly stalks; reddish-green flower spikes; grows in dense colonies in wet ground. HABITAT & SEASON Streambanks, springs, wet slopes and road cuts. Season: Spring through fall DOCUMENTED USE Peeled young stalks have documented food use in southern Chile and Argentina. Large leaves can serve as temporary work-surface covers. CAUTION Stalks require correct species and preparation; leaves and roots are not recommended as food. The plant is invasive outside its native range and may be protected or controlled. LOOK-ALIKES True rhubarb has different flower stalks and leaf attachment; butterbur lacks the same coarse prickly petioles.

PICHI-PICHI TRADITIONAL-USE

Fabiana imbricata

Identify

Erect resinous shrub with tiny overlapping scale-like leaves and small white to pale violet tubular flowers. HABITAT & SEASON Dry forest margins, rocky slopes and Patagonian steppe. Season: Summer DOCUMENTED USE Published regional traditional uses include urinary and digestive preparations; the aromatic stems have also been used as incense or smoke material. CAUTION Internal use is not recommended without qualified local medical guidance. Resinous smoke may irritate lungs and eyes. LOOK-ALIKES Young cypress twigs also have scale-like foliage but grow on a tree and bear cones.

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Seasonal and Habitat Planning

Availability is local and variable. Use these patterns to plan observation, not to assume harvest.

PHASE WHAT TO EXPECT FIELD EMPHASIS

SPRING / EARLY RAINS New shoots, flowers, catkins and wetland hazards become Learn leaves and flowers before fruit; avoid roots visible. and bulbs.

SUMMER / PEAK Maximum foliage; most edible greens and traditional-use Photograph multiple traits; note habitat and GROWTH herbs are identifiable. abundance.

AUTUMN / FRUIT Most berries, hips, cones and seed structures mature. Confirm entire plant; leave food for wildlife and regeneration.

WINTER / DORMANT Evergreen shrubs, bark, twigs, cones and persistent fruit Rely on woody traits; snow and frost obscure herb remain. identification.

HABITAT FORECAST HABITAT LIKELY PLANTS PRIMARY RISK

Dry ridge / exposed slope Coihue, Lenga, Nire Windthrow, fire, protected slow-growing plants

Moist forest / sheltered Cordilleran cypress, Arrayan, Chilean firebush / notro Look-alikes, falling timber, poor visibility valley

Wetland / peat / stream edge Palqui, Deu / huique Water hemlock or toxic bog shrubs; unstable ground

Open disturbance / camp Maqui, Calafate, Michay / Darwin's barberry, Chaura Contamination, invasive species, human edge chemicals

Seasonal Reality

A late frost, drought, fire, flood, browsing pressure or poor flowering year can remove an expected food source. Build plans around several independent resources and assume that every crop may fail.

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Look-alike and Hazard Matrix

The most important plant knowledge is often knowing what not to touch, taste or dig.

HAZARD FIELD CUE RULE

Palqui Shrub with narrow alternate leaves that smell All parts are poisonous, especially unripe fruit and unpleasant when crushed, clusters of greenish-yellow foliage; livestock deaths are well documented. tubular flowers and dark berries. Smoke from burning foliage may also be irritating.

Deu / huique Shrub or climber with opposite small leaves on arching Fruit and seeds contain potent neurotoxins and can stems and dense dark berry-like fruit clusters. cause seizures. There is no safe field preparation.

Foxglove Tall spike of purple, pink or white tubular flowers with All parts contain cardiac glycosides and can cause spotted throats; soft wrinkled basal leaves. life-threatening heart rhythm changes. Do not make tea, salve or smoke from it.

Poison hemlock Tall smooth hollow stems commonly blotched purple; Highly poisonous by ingestion. Sap can contaminate finely divided glossy leaves; many white hands and tools. Do not burn in a cooking fire. umbrella-shaped flower clusters.

SUSPECTED POISONING HARVEST ETHICS

• Stop exposure. Take the common, leave the rare.
• Remove material from mouth; rinse. Never girdle a tree.
• Do not induce vomiting. Avoid roots and whole plants.
• Save a sample/photo. Leave wildlife food.
• Call emergency services or poison control. Follow Indigenous and protected-area rules.
• Monitor breathing and consciousness. Restore disturbed ground.

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Sources, Scope and Limitations

Taxonomy and regional occurrence change. Verify the current name, distribution and legal status before publication or field use.

1. Flora Argentina Instituto de Botanica Darwinion, CONICET - national scientific flora

https://buscador.floraargentina.edu.ar/

2. Parque Nacional Nahuel Huapi Administracion de Parques Nacionales, Argentina - protected-area ecology

https://www.argentina.gob.ar/parquesnacionales/nahuelhuapi

3. Plants of the World Online Royal Botanic Gardens, Kew - taxonomy and distribution

https://powo.science.kew.org/

4. Published ethnobotanical studies of Mapuche and Patagonian plant use Molares, Ladio and colleagues; peer-reviewed literature - ethnobotany

https://scholar.google.com/scholar?q=Molares+Ladio+Patagonia+ethnobotany

5. Medicinal and food plants of Patagonia: peer-reviewed regional literature CONICET and regional universities - ethnobotany

https://scholar.google.com/scholar?q=Patagonia+medicinal+plants+ethnobotany

6. Centro Nacional de Intoxicaciones Hospital Nacional Prof. Alejandro Posadas, Argentina - poison safety

https://www.argentina.gob.ar/salud/hospitalposadas/centronacionaldeintoxicaciones

Independent Publication Notice

This guide is an independent educational reference and is not affiliated with HISTORY, the Alone television series, local Indigenous governments or protected-area authorities. Traditional-use notes summarize published sources and do not transfer cultural authority. Local knowledge holders, current regulations and qualified medical or botanical professionals take precedence.

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