Centaurea stoebe L.

Taxonomy: Fam. Compositae// Genus: Centaurea// Species: Centaurea stoebe L.

Synonyms: Centaurea maculosa Lam., Encycl. 1: 669. 1785; Centaurea rhenana Boreau, Fl. Centre France, ed. 3, 2: 355 (1857).

Literature used for determination: Hayek (1928-1931), Dostál (1976 in Tutin et al.), Gajić (1975 in Josifović), Stoyanov, Raycheva & Cheschmedzhiev (2021).

Two forms were recorded in the same locality in the Probishtip region- white-flowered form with yellow to yellow-brown appendages, which was predominant, and the standard purple flowered form with dark brown to blackish appendages.

Lifeform: Perennial plant; hemicryptophyte according to the Raunkiær system.

Distribution: Native from Europe to Central Asia and Caucasus according to the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat: Rocky terrains.

Flowering period: Summer (JUN, JUL).

Locality: Probishtip, rock cliffs between the village of Ratkovica and the Shtalkovichka River, above Mangov kamen. Date: 07.06.2026. White-flowered form.

Locality: Probishtip, rock cliffs between the village of Ratkovica and the Shtalkovichka River, above Mangov kamen. Date: 07.06.2026. Purple-flowered form.

Locality: Probishtip, rock cliffs between the village of Ratkovica and the Shtalkovichka River, above Mangov kamen. Date: 07.06.2026. Young plants in first year of growth.

Images of herbarium specimens. Specimens from Probishtip, rocks cliffs rock cliffs between the village of Ratkovica and the Shtalkovichka River, collected 07.06.2026.

Scaled images and close-ups. Specimens from Probishtip, rocks cliffs rock cliffs between the village of Ratkovica and the Shtalkovichka River. Date: 07.06.2026.

References:

Centaurea stoebe BL. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:191689-1 [Accessed 26.08.2026].

Centaurea stoebe. Greuter, W. 2006+: Compositae (pro parte majore). – In: Greuter, W. & Raab-Straube, E. von, Compositae. Euro+Med PlantBase – the information resource for Euro-Mediterranean plant diversity. Published at https://europlusmed.org/. Published at https://europlusmed.org/cdm_dataportal/taxon/73ed609a-8b88-4766-b547-60a5eb5b7e93 [Accessed 26.08.2026].

Dostál, J. 1976. Centaurea L. In Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. (eds.), Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae). Cambridge: Cambridge University Press, pp. 254–301.

Gajić, M. 1975. Rod Centaurea L. In Josifović, M. (ed.), Flora SR Srbije, VII. Beograd: Srpska Akademija Nauka i Umetnosti, pp. 229–264.

Hayek A. 1928–1931. Prodromus florae peninsulae Balcanicae, 2. Band: Dicotyledoneae Sympetalae. — Repert. Spec. Nov. Regni Veg. Beih. 30(2): 1152 pp. [1–96 (1928), 97–336 (1929), 337–576 (1930), 577–1152 (1931)].

Stoyanov K., Raycheva Ts. & Cheschmedzhiev I. 2021. Key to the native and foreign vascular plants in Bulgaria. Agricultural University Plovdiv Academic Press (in Bulgarian).