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Genus Saxifraga L.

L.( Sp. PL ed. 1 (1753)398; Gen. PI. ed. 5 (1754) 189.

Fam:   Saxifragaceae Juss.

English Name: Saxifrages

Description:

Perennial, rarely one- or two- annual. Successive leaves, rarely opposite, usually forming a basal rosette, sometimes at the base of bulbil, simple, entire, entire or serrated, scalper-shaped or bold, handles, rarely seated, without stipules; the leaves on blossom stems few or absent. Inflorescenses top besom-like or umbel-like, rarely racemose or single. Hermaphrodite blossoms . Sepals 5. Petals 5. Stamens 10. Pistil formed from two fruit-sheets with upper or lower semi- ovary, often partly or completely assimilates with blossom bed.  Pedicles 2, short, free, spreading or erect. Fruit fission box. Seeds small, numerous. Insect pollinated. Propagated by seed, cuttings and bulbs.

Note * .
Most species are panmikt, self-fertile, protander. Selfing is often. Apomiksis occurs in some groups (S. bulbifera, S. carpatica etc.) . When cultivation is obtained watts numerous hybrids, but in nature they do not play a particularly significant role in the development of the group (except group umbrosa, exarata etc.) . Key factors in the evolution are gene mutations. Polyploids are manifested only in certain sections (mainly in the arctic region). Aneuploidy occurs in group S. granulata, and disploidiya group S. exarata - S. moschata.

References: „Флора на НР България”, том IV, БАН, София, (1970)

Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.

Species:

Saxifraga bulbifera L. - Bulbous saxifrage

Saxifraga ferdinandi-coburgi Kell.-

Saxifraga luteoviridis Schott. et Kotschy -

Saxifraga paniculata Mill.- White mountain saxifrage, Silver saxifrage

Saxifraga pedemontana All. - Piedmont saxifrage

Saxifraga rotundifolia L. - Round-leaved saxifrage

Saxifraga stellaris L.- Starry saxifrage

Saxifraga stribrnyi (Vel. ) Podp. - Engleria saxifrage