Lactuca tuberosa Jacq. in the flora of Osogovo Mountain, North Macedonia

Taxonomy: Fam. Compositae// Genus: Lactuca// Species: Lactuca tuberosa Jacq.

Determined according to the botanical keys provided by Moore, Tutin and Walters (1976 in Tutin et al.) and Feráková and Sell (1976 in Tutin et al.) as Steptorhamphus tuberosus (Jacq.) Grossh. The accepted name in The Euro+Med PlantBase is Lactuca tuberosa Jacq.

Lifeform: Perennial plant. Hemicryptophyte according to the Raunkiær system.

Distribution: Native from the East Mediterranean region to Ukraine, Iran and Oman according to the distribution information provided by the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat: Hill pastures, clearings of oak forests.

Flowering period: Summer (JUN).

Locality: Kochani: Golema River, above the Gradche waterfall. Date: 06.06.2026.

*Lactuca tuberosa* – habit. Kochani: Golema River, above the Gradche waterfall, 06.06.2026. Photo by Trajche Dimitrovski.

Scaled images and close-ups. Specimen from Kochani: Golema River, above the Gradche waterfall.

*Lactuca tuberosa* – habit (herbarized specimen). Scale in cm. Specimen from Kochani: Golema River, above the Gradche waterfall. Photo by Trajche Dimitrovski.

Locality: Kochani: gorge of the Kochanska River. Date: 18.05.2024.

*Lactuca tuberosa* – habit. Kochani, Gorge of the Kochanska River, 18.05.2024. Photo by Trajche Dimitrovski.

References:

Feráková, V. and Sell, P.D. 1976. Steptorhamphus Bunge. 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. 328.

Lactuca tuberosa. 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/. https://europlusmed.org/. https://europlusmed.org/cdm_dataportal/taxon/5c96ab52-57fd-459a-9123-7fa178bc4e5e [Accessed 30.07.2026].

Lactuca tuberosa Jacq. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:228324-1 [Accessed 30.07.2026].

Moore, D. M. Tutin, T. G. and Walters, S. M. 1976. Compositae (key to genera). 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. 103–109.

Lactuca tuberosa Jacq. (syn. Steptorhamphus tuberosus (Jacq.) Grossh.)

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