Geranium robertianum, plant for medicinal use

Geranium robertianum also known as St. Robert’s Grass , Shepherd’s Needle, St. Robert’s Geranium, Equinace Grass, Stork’s Beak, St. Rupert’s Yerba or Mount Geranium. It belongs to the Geraniaceae family and is native to Europe, North Africa, and Asia.

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The name of this species is due to the distortion of the Latin  blush,  which means red. For what should have been called herba rubertinana and not robertiana.

Geranium robertianum characteristics

Annual or biennial plant , which usually reaches a height of 40 cm. It is erect, hairy and glandular, with a branched stem, reddish in color that, when rubbed, usually gives off an unpleasant odor.

The root is thick and globose, in the shape of a turnip.

The leaves are alternate, with a triangular or pentagonal outline, composed of 3 to 5 lobed leaflets.

The flower is small, with pink petals that come out in pairs at the ends of a peduncle longer than the leaf.

The fruit is dry and appears after flowering.

Geranium robertianum care

It is used as a medicinal plant thanks to its valuable contribution.

It requires exposure to full sun or semi shade.

It is a plant  that develops in slightly dry, sandy, loam or clay soils with good drainage.

Irrigation should be moderate without flooding.


The active parts that Geranium robertianum has  are essential oils, tannins and a bitter substance (gerania).

It is used in herbalism thanks to its astringent properties. It is even used as a hemostatic to cure nose and lung bleeds, as well as to relieve severe diarrhea.

It is also part of the treatment to minimize urinary and kidney stones and as a diuretic.

Topically it is excellent for skin diseases such as eczema, ulcers, dermitis, regeneration of the epidermis and inflammations.


  • The correct dose must be used, since tannins can irritate the gastric mucosa.
  • Do not apply topically in children under 2 years of age or people with respiratory allergies.

Did you know about this plant? or Did you know its properties? If so, remember that we are always ready to hear everything about our plants and every input is very valuable.

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