Blue thistle
StarCarthamus caeruleus
Synonyms: Kentrophyllum coeruleum, Carduncellus caeruleus var. dentatus, Onobroma caeruleum, Carthamodes coeruleum, Carduncellus caeruleus, Carduncellus tingitanus var. corymbosus, Centaurea tingitana, Onobroma tingitana, Lamottea caerulea, Carduncellus caeruleus var. launaeifolia, Carthamus tingitanus, Carthamus caeruleus var. incisus, Carthamus caeruleus var. tingitanus, Carthamus caeruleus var. dentatus, Onobroma caeruleum var. pinnatifidum, Kentrophyllum tingitanum, Carduncellus caeruleus subsp. tingitanus, Carduncellus caeruleus var. incisus, Carduncellus tingitanus, Carduncellus multifidus, Carthamus carolinensis
Western Herbalism Properties
Traditional Uses
In North African folk medicine, especially the Kabylia region of Algeria, the fresh root of Carthamus caeruleus is the principal medicinal part: cleaned roots are macerated or pressed and the juice (or a powder/paste) is applied topically to treat burns, wounds, dermatoses, inflammatory skin conditions and rheumatism (ethnopharmacological surveys; Boudjelal et al.). Pharmacological work on Algerian material has confirmed wound-healing and skin-regenerating activity of root essential oil and extracts, together with documented anti-inflammatory and antibacterial activity, supporting this traditional dermatological use (Bouriche / Dahmani et al., 2018; recent essential-oil and root-juice studies).
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Botanical Description
Carthamus caeruleus is a spiny perennial thistle-like herb of the daisy family, growing from a thick taproot to around 30-80 cm tall. It forms a basal rosette of deeply pinnatifid, spine-toothed leaves, with smaller clasping leaves up the stiff, branched stem. Unlike its yellow-flowered relative the safflower, this species bears solitary heads of blue to violet florets enclosed in a spiny involucre of leaf-like bracts, blooming in summer and producing achenes typical of the tribe. It is native to the Mediterranean basin and North Africa, particularly Algeria, Morocco and southern Europe, where it grows on dry hillsides, roadsides, fallow fields and other disturbed, sunny ground.
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
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