Euphorbia falcata L.

Taxonomy: Fam. Euphorbiaceae// Genus: Euphorbia// Species: Euphorbia falcata L.

Determined according to the botanical keys provided by Smith and Tutin in Tutin at al. (1968) and Micevski in Micevski (1998).

Lifeform: Annual; therophyte according to the Raunkiaer system.

Distribution: Native to Macaronesia, Mediterranean to West Himalaya, Europe to Mongolia; Primorye (Russia) according to the distribution information provided by the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat: Hill pastures.

Flowering period: Summer: JUN, JUL.

Euphorbia falcata – habit. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – habit. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – inflorescence. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – inflorescence. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – umbel with cyathia. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia and raylet leaves. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – cyathia and raylet leaves. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – stem with leaves. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – stem with leaves. Osogovo – “Svilanovo” region, 15.06.2025. Photo by Trajche Dimitrovski.
Euphorbia falcata – left: habit (scale in cm); center: capsules and right: seeds (scale in mm). Photo by Trajche Dimitrovski.

References:

Euphorbia falcata L. Plants of the World Online, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332094-2 [Accessed 17.06.2025].

Euphorbia L. Micevski, K. in Micevski, K. (1998). The Flora of the Republic of Macedonia Vol. I, Book 4. Macedonian Academy of Sciences and Arts, pp. 846 – 876.

Euphorbia L. Smith, A.R. and Tutin, T.G. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M., & Webb, D.A. (1968). Flora Europaea. Volume 2. Rosaceae to Umbelliferae. Cambridge: Cambridge University Press, pp. 213 – 226.