| Family | RUBIACEAE |
| Genus species | Cynanchica petraea (V.I.Krecz. ex Klokov) P.M.Sl. |
| Bibliography | h.l., comb. nov. |
| Native Range | s. & se. European Russia |
| Primary Biome | Temperate |
| Habitat | rocks |
| Description | green, nitid, stems ascendent, glabrous, leaves setose-linear, 1-2cm, acute, scabrous, flowers of 2-3, fasciculate, producing lax cyme, bracts lanceolate, corolla 2-3mm long |
| Size | 10-25cm |
| Color | whitish, pale rose |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 10-16°C cuttings in late summer |
| Synonyms | Asperula exasperata ssp. petraea (V.I.Krecz. ex Klokov) Pjatunina Asperula petraea V.I.Krecz. ex Klokov, Fl. URSS 23: 696 (1958) Cynanchica tephrocarpa ssp. petraea (V.I.Krecz. ex Klokov) P.Caputo & Del Guacchio |
| Territory | 1 Europe 14 Eastern Europe (RUE East European Russia, RUS South European Russia) |