Sundew

At a Glance

Common name

Sundew

Scientific name

Drosera rotundifolia

Family

Droseraceae

Region

Europe

Plant part

Aerial parts (whole plant)

Caffeine

Caffeine Free

Evidence

Insufficient

Safety review

Safety information on file

Botanical Description

A small carnivorous plant forming a basal rosette of round green leaves covered in glistening red-tipped glandular hairs that trap insects, sending up a slender stem of tiny white flowers.

Also known as: Round-Leaved Sundew, Dewplant, Youthwort

Historical Background

Used since the 16th century in European herbalism as an antitussive for dry, spasmodic coughs; listed in old pharmacopeias before falling out of wide use.

Earliest recorded uses: Dry, tickly, spasmodic cough and chest complaints.

Cultural significance: A fascination of naturalists for its insect-trapping leaves; once a recognized cough remedy in European pharmacy.

1. 16th century

   European herbalists adopt sundew for spasmodic cough.

2. Modern

   Declines as synthetic antitussives rise; some species now protected.

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Flavor & Aroma

Aroma: Faint, green and earthy

Tea Preparation

Modern Evidence

Naphthoquinones (plumbagin) are studied for antimicrobial and antispasmodic effects; clinical evidence for cough is lacking.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.