Asperula involucrata, Wahlenb.

53. A. involucrata Wahlenb. View in CoL in Jakob Berggren, Res. Eur. Österländ. 2: 21 (1827).

Stock with more or less slender stolons. Stems (10—) 15-50 cm, erect, branched from the base, 4-angled, shortly hairy below, glabrous above. Leaves in whorls of 4, 10-25(-30) x (2-)3-6(-6-5) mm, broadly elliptical to oblanceolate, obtuse, narrowed into a petiole-like base, thin, with 1 main vein and a distinct reticulate venation, glabrous but the lowest usually shortly hairy. Partial inflorescences capitate, terminal and lateral; bracts lanceolate, glabrous, smooth; pedicels 0-1-5 mm. Flowers 4-merous; corolla 4-6(-6-5) mm, infundibuliform, white, glabrous; tube 3-4 mm; lobes 1-2 mm, about as long as wide. Filaments 0-8-0-9 mm; anthers 0-6-0-7 mm, oblong, yellowish. Fruit 0-8-1 -3 mm, glabrous, weakly granulate. Deciduous woods. S.E. part of Balkan peninsula. Bu Gr Tu.