Rosyanka longifolia

Name: Sundew long-leaved

Sundew long-leaved, English (Drosera anglica L.)

Sundew long-leaved, English – a perennial plant from the Rosyankovye family (Droseraceae).


A plant similar to round-leaved sundew. It differs in narrow, oblong-wedge-shaped or oblong-linear leaves, twisted at the top, gradually turning into a petiole. It blooms in June-August. It occurs together with round-leaved sundew, but much less frequently.

Harvesting, description of raw materials:

In medicine, sundew grass is used – Herba Droserae, which is harvested during flowering. Rosettes of dried leaves of previous years are torn off from the whole plant and dried in the shade. The raw material consists of the aerial part of the plant with a rosette of basal leaves. When dried, the leaves take on a reddish-brown color, there is no smell, the taste is astringent, sour-bitter. In the glandular heads, cells with red juice are visible. Blackened or dark brown grass is not allowed for use.

Contains active substances:

Sundew grass contains naphthoquinones plumbagin and drozeron, vitamin C, tannins, organic acids and anthocyanin pigment. Plumbagin at a dilution of 1:50,000 inhibits the growth of some pathogenic fungi and bacteria, with a particularly strong effect on whooping cough pathogens.

Medicinal use:

The herb has an antispasmodic effect and is used as an infusion for whooping cough, chronic bronchitis, laryngitis and other diseases. In folk medicine, they drink a decoction of the herb for nervous diseases, headaches, diphtheria, plague; alcohol tincture is drunk for malaria.

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