Drosera rotundifolia.   Sundew   Family: Droseraceae (Sundew family)     
This is a carnivorous plant often found in bogs, marshes and fens.
PART USED: Entire herb, gathered during the flowering period.
ACTIONS
1. Antitussive.[2] Antiasthmatic.[2]
2. Antispasmodic.[1,2] Demulcent.[1,2]
3. Expectorant.[1]
4. Bronchial relaxant.[1]
INDICATIONS
1. Bronchitis.[1] Asthma.[1,2] Pertussis.[1] Tracheitis.[1] Whooping cough.[2] Chronic bronchitis with peptic ulceration or gastritis.[1]
2. Gastric ulceration.[1]
SPECIFIC INDICATIONS
Whooping cough and asthma, and for gastric complaints.[2]
COMBINATIONS
- Asthma, with Euphorbia, Grindelia, Senega.
PREPARATIONS:
Dried plant  1-2 g or by infusion.[1]
Liquid extract 1:1 in 25% alcohol  0.5-2 ml.[1] 0.5-1.5 ml.[2]
Tincture 1:5 in 60% alcohol  0.5-1 ml.[1]

ORIGIN: Grows thoughout Europe on wet heathes and moors and in sphanum bogs.
DESCRIPTION Native British herb, growing in marshy places. It is an insectivorous plant. It is small, with a basal rosette, long-petioled, roughly circular blades having reddish tentacles on the upper surface which entrap insects, and bearing a spike of white, five petalled flowers.
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Constituents
Research
It is reported to be antispasmodic against bronchosapsm induced by acetylcholine and barium chloride.[1]
Plumbagin has a number of interesting actions; it is antimicrobial in vitro against some gram-positive protozoa.[2] It is active against some specis of Leishmania.[3] In large doses plumbagin is cytotoxic, but in small doses has immunostimulating activity in vitro.[4]
References
[1] Medicinal Plants of Tropical West Africa B. Oliver-Bever. Pub. Combridge University Press (1986) UK
[2] Vichnanova, S.A. et al. (1973) Planta Med. (Suppl.), 185 
[3] Croft, S. et al. (1985) Ann. Trop. Med. Parasitol. 79 (6), 651
[4] Wagner, H. et al. (1986) Abstr. Phytochem. Soc. Eur. Lausanne 3-5th Sept. 1986 43P