Botanical Overview
Drosera rotundifolia, commonly known as Common sundew or Round-leaved sundew, is a member of the Droseraceae family. This insectivorous herb grows in boggy and marshy regions across Europe, North America, and Asia. The medicinal part used is primarily the leaf, notable for its glandular hairs and sticky mucilage.
Energetics
This plant exhibits a cooling temperature and moistening moisture quality. It has acrid, sweet, and sour tastes, with a relaxing tonicity and acts principally on the qi.
Primary Actions
- Antitussive
- Expectorant
- Antispasmodic
Indications
Western
- Cough
- Bronchitis
- Whooping cough
- Asthma
- Respiratory spasms
Syndromes
- Respiratory tract inflammation
- Bronchial hyperactivity
TCM
No well-established traditional uses or syndromes documented.
Ayurveda
No well-established traditional uses or syndromes documented.
Unani
No well-established traditional uses or syndromes documented.
Constituents & Mechanisms
The plant contains flavonoids, quinones, tannins, and volatile oils contributing to its antitussive and antispasmodic properties.
Dosage & Preparations
- Tincture 1:5 50% ethanol, 2-4 mL, two to three times daily
- Infusion 2-5 g, two to three times daily
Safety & Contraindications
Generally safe when used in recommended doses. Safety in pregnancy and lactation is not established; use with caution. Avoid if allergic to related species.
Astrological Correspondences
No reliable information available on planetary or elemental rulers for Drosera rotundifolia.
Selected References
- Drosera rotundifolia L., herba. European Medicines Agency (EMA) HMPC Assessment Report, 2010.
- Drosera rotundifolia (Round-leaved Sundew). Plants For A Future (PFAF) Database.
- Grieve, M. A Modern Herbal, 1931.