Vinca herbacea
Vinca herbacea
Bikir çiçeği
Herbaceous perennial, dying back completely to rootstock each winter, with ascending shoots to 20 cm, trailing shoots to 60 cm. Leaves herbaceous, deciduous, very variable, narrowly elliptic, elliptic, lanceolate to ovate, 0·6-5 x 0·2-3 cm, base cuneate, apex acute, margin smooth, scabrid or shortly ciliate, with incbhspicuous veins ascending at 10-35 from midrib; petiole 1-4 mm. Calyx 3-10 mm; lobes shortly ciliate or glabrous and smooth. Corolla pale blue to purple-blue; tube 1-2 cm, lobes 1-2 cm. Follicles 2·5-3·5 cm. Seeds 11-14 mm. Fl. 3-5. Open .sunny slopes, on sand, gravel, scree, fallow fields, rocks, scrub, very open woodland, 400-2000 m.
C. Europe, Balkans, C. & S. Russia, Caucasia, W. Syria, N. Iraq, N. & N.W. Iran. A very variable species with so much intergrading between extremes as to frustrate its division into subspecies.
