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Medicinal Herbs Database

Explore 2,700+ herbs with evidence-based information

AllDigestiveImmune SupportNervineCardiovascular
PV
Respiratory

Polypodium vulgare

Polypodium vulgare

European fern used in folk medicine as expectorant and mild laxative; rhizome contains ecdysones.

cough3-5g dried rhizome tea 2x/day
PregnancyNursing
PN
Respiratory

Populus nigra

Populus nigra

A European poplar whose buds (Populis Gemma) are used for respiratory conditions, pain, and wound healing.

Respiratory conditions2-3ml tincture three times daily
PregnancyNursing
PC
Respiratory

Protea cynaroides

Protea cynaroides

National flower of South Africa used by indigenous peoples for chest conditions and as a cough medicine.

Chest conditions in South African folk medicine5-10 g dried flower or bark as decoction
PregnancyNursing
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Respiratory
Anti-inflammatory
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Womens Health
Analgesic
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PF
Respiratory

Prumnopitys Ferruginea

Prumnopitys ferruginea

New Zealand conifer used by Maori as food source (fruit) and medicinally, with the resinous timber having aromatic medicinal uses.

food sourceBark steam inhalation or resin topically
PregnancyNursing
PP
Respiratory

Prunus padus

Prunus padus

European Rosaceae tree whose bark and berries are used in folk medicine for digestive complaints and fever.

Fever in European folk medicine5-10 g bark decoction
PregnancyNursing
PP
Respiratory

Prunus Persica Herb

Prunus persica

Peach tree whose leaves, bark, and flowers are used in folk medicine for digestive, respiratory, and kidney conditions.

digestive sedative and expectorant in Asian folk medicine2-4g dried leaf as tea; fruit freely as food
PregnancyNursing
PS
Respiratory

Prunus serotina

Prunus serotina

North American cherry used by Native Americans for cough, cold, and fever; bark syrup historically popular.

cough1-2ml tincture or 1-2g bark daily
PregnancyNursing
PT
Respiratory

Pycnanthemum tenuifolium

Pycnanthemum tenuifolium

Slender-leaved aromatic perennial of eastern North American meadows, used by Native Americans for colds.

Used by eastern Native American tribes for colds and respiratory conditionsTea: 1-2 tsp per cup 3x/day
PregnancyNursing
QH
Respiratory

Qian Hu

Peucedanum praeruptorum

TCM herb that descends qi and dispels wind-heat phlegm.

Cough with thick yellow phlegm5-10g in decoction daily
PregnancyNursing
RM
Respiratory

Ravintsara Malagasy

Cinnamomum camphora (Madagascar)

Madagascar variety of camphor tree with unique high-cineole chemotype.

Respiratory infectionsTopical: 2-3 drops diluted in carrier oil; Inhalation: steam diffusion
PregnancyNursing
RE
Respiratory

Red Elder

Sambucus racemosa

Red-berried elder of mountain Europe and North America; berries mildly toxic raw but used in folk medicine after cooking; bark used as emetic.

Respiratory conditions in Scandinavian folk medicineRipe cooked berries only; bark decoction 1–2 g with extreme caution
PregnancyNursing
RL
Respiratory

Reindeer Lichen

Cladonia rangiferina

Arctic and subarctic lichen forming vast ground cover eaten by reindeer. Used by Sami and other circumpolar peoples for respiratory conditions and as survival food.

Traditional Sami and circumpolar medicine2-3g tea or topical use
PregnancyNursing
RP
Respiratory

Robinia pseudoacacia

Robinia pseudoacacia

North American naturalized tree; flowers used as food and in folk medicine for digestive and respiratory conditions.

digestive complaintsFlowers as food or tea 3-5g 2x/day
PregnancyNursing
RC
Respiratory

Rosemary Cineole

Salvia rosmarinus ct. cineole

Cineole-dominant chemotype of rosemary with stronger expectorant and cognitive-enhancing properties.

Mediterranean respiratory herbAromatherapy or 1-2% diluted oil; 2-4g herb as tea
PregnancyNursing
SM
Respiratory

Salazaria mexicana

Salazaria mexicana

Spiny shrub of the Mojave and Sonoran deserts with papery inflated calyces, used by Southwestern tribes.

Used by Cahuilla and other Southwestern tribes for respiratory conditionsTea: 1 tsp per cup 2x/day
PregnancyNursing
SL
Respiratory

Salvia leucantha

Salvia leucantha

Mexican ornamental sage with folk medicinal use for respiratory conditions and as calming herb.

Respiratory conditions in Mexican folk medicine3-5 g dried herb as tea
PregnancyNursing
SB
Respiratory

Sang Bai Pi

Morus alba (bark)

TCM bark for lung heat cough, wheezing, and edema.

Lung heat cough6-12g in decoction daily
PregnancyNursing
SB
Respiratory

Sang Bai Pi TCM v2

Morus alba (root bark)

TCM bark that drains lung heat and reduces edema.

Lung heat cough6-12g in decoction daily
PregnancyNursing
SL
Respiratory

Securidaca Longipedunculata

Securidaca longipedunculata

Southern and West African tree used across multiple cultures for respiratory conditions, pain, sexually transmitted infections, and as a powerful purgative.

Chest conditionsBark powder: 0.5-1g carefully; toxic in high doses
PregnancyNursing
SS
Respiratory

Seneca Snakeroot

Polygala senega

North American prairie plant root used by the Seneca nation to treat rattlesnake bites and as expectorant, adopted into European pharmacopoeia.

Rattlesnake bite antidote in Seneca Nation tradition1-2g dried root tea 3x daily; 1.5-3ml tincture 3x daily
PregnancyNursing