Determined according to the botanical key provided by Webb in Tutin et al. (1964) and Micevski (1998).
Two subspecies of Saxifraga rotundifolia L. occur in the Osogovo region: Saxifraga rotundifolia L. subsp. rotundifolia and Saxifraga rotundifolia subsp. chrysosplenifolia (Boiss.) D. A. Webb. Distinction between subspecies:
–Saxifraga rotundifolia L. subsp. rotundifolia: leaves with thin cartilaginous margin; petiole slender, not widened above.
–Saxifraga rotundifolia subsp. chrysosplenifolia (Boiss.) D. A. Webb.: leaves without cartilaginous margin; lamina decurrent on the petiole, the petiole widened above.
Lifeform: Perennial; Hemicryptophyte according to the Raunkiær system.
Distribution: Native from Central and South Europe to Iran according to the distribution information provided by the Plants of the World Online portal (Royal Botanic Gardens, Kew).
Habitat: Shaded and moist positions – edges and clearings forests, river gorges, from c. 750 m up to 1400 m altitude.
Flowering period: Late spring – early summer: MAY, JUN.
Saxifraga rotundifoliasubsp. rotundifolia – habit. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flowers. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – side view of flowers with calyx, pedicels. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – upper cauline leaf. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – stem with cauline leaves. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – lower cauline leaf. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaves. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf. Petiole slender, not widened above. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – adaxial side of basal leaf. Petiole slender, not widened above. Osogovo – region between Visoka chuka (Ponikva) and Ratkova skala, 08.06.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – habit. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – inflorescence. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – flower. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – side view of flower with calyx. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cauline leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaves. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaves. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaves. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – base of lamina. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf petiole. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – basal leaf petiole. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – abaxial side of basal leaf and leaf petiole. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – lower part of stem. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – plant base with rootstock. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cartilaginous margin of leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cartilaginous margin of leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.Saxifraga rotundifoliasubsp. rotundifolia – cartilaginous margin of leaf. Osogovo – “Shtalkovihka” River, 07.05.2023. Photo by Trajche Dimitrovski.
References:
Saxifraga L. Micevski, K. (1998). The Flora of the Republic of Macedonia Vol. I, Book 4. Macedonian Academy of Sciences and Arts, pp. 1069 – 1091.
Saxifraga L. Webb, D.A. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M., & Webb, D.A. (1964). Flora Europaea. Volume 1. Lycopodiaceae to Platanaceae. Cambridge: Cambridge University Press, pp. 364 – 380.
