Frangula alnus, syn. Rhamnus frangula – Alder buckthorn, glossy buckthorn Rhamnaceae – Buckthorn family The raw material is the frangula bark – Frangulae cortex, harvested from young trunks and branches in early spring and stored for over than a year or dried within 2 hours in up to 100° C. The bark is only partially protected, so it is harvested only in designated areas.
Mentha piperita (L.) Hudson – Peppermint Lamiaceae (Labiatae) – Mint family It is a hybrid of three species, M. spicata L. [M.longifolia (L.) Huds. + M. rotundifolia (L.) Huds] and M. aquatica. The raw material is the peppermint leaf and the leafy shoot tip, harvested from non-flowering plants, dried quickly in the shade, in max. 35° C.
Humulus lup ulus L. – Common hop Cannabaceae family The raw material is the ripe hops infructescence, harvested at the start of ripening, dried in shade and ventilated. The raw material are also the secretion heads of the glandular hairs (lupulina), open at the start of ripening from female infructescences of hops.
Thymus vulgris – Common thyme, garden thyme Lamiaceae, formerly Labiatae – Mint family The part used in medicine is the thyme herb – Thymi herba and the thyme oil – Thymi oleum. It is harvested in June and July and dried in natural conditions or in drying rooms in max. 35° C.
Glycyrrhiza glabra, syn. Liquiritia officinalis – Liquorice, licorice Fabaceae, formerly Papilionaceae – Legume family The raw material is the liquorice root and stolons – Glycyrrhizae radix, harvested in the autumn and early spring, and also the concentrated aqueous extract from fresh roots and stolons –Glycyrrhizae succus. Removing the outer bark from the roots allows to get rid of the bitter taste.
Thymus serpyllum – Wild thyme, Breckland thyme, creeping thyme Labiatae – Mint family The parts used in medicine include: the wild thyme herb Herba Serpylli, harvested during blooming in the autumn and dried in natural conditions or in drying rooms in max. 35° C, and the wild thyme oil – Serpylli oleum. The oil is obtained from the herb by way of steam distillation.
Linum usitatissimum – Linseed, Flax, Cultivated flax Linaceae family Parts used in medicine include: ripe linseeds – Lini semen, cold pressed linseed oil – Lini oleum and pomace (flax flour) – Lini seminis placenta. After they are threshed, ripe seeds are dried in drying rooms in max. 40° C.
Hyssopus officinalis – Hyssop Lamiaceae, or Labiatae – Mint family The raw material is the hyssop herb – Hyssopi herba. The herb is harvested at the start of blooming and dried in natural conditions (shaded and ventilated) or in drying rooms in max. 35° C.
Centaurea cyanus – Cornflower, basket flower Asteraceae, formerly Compositae – Aster family, formerly composite The raw material is the cornflower ray flower – Cyani flos. From the flower heads harvested in June, the peripheral flowers are picked and quickly dried in an elevated temperature, ventilated. If the flowers are dried for a long time in natural conditions and in the sun, they change their colour (turn pale) as the blue colourant, cyanidin, is broken down. The dried flowers should be tightly sealed and stored in a dark place.
Agropyron repens – Couch grass Rhizoma Agropyri (syn. Rhizoma Graminis) – Couch grass rhizome Poaceae (Gramineae) – Grass family The part used in medicine is the couch grass rhizome, harvested in the spring or autumn and dried in natural conditions.
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