Galium album

Perennial, stoloniferous herb.

30–100 cm high.

The stem is ascending, quadrate, glabrous and robust at the base.

The leafs and foliaceous stipules are simple and narrow, whorled. A whorl consists of 6–8 leaves. The lamina (10–30mm) is lanceolate-linear or elongate, widest near the apex, often coriaceous to some degree and mucronate.

The inflorescence is a broad, rather lax compound cyme. The flowers are bisexual and odourless. The corolla is 3–5 mm wide, four-lobed, rotate and white. The calyx is reduced.

The fruit (1mm) is a two-sectioned schizocarp. The mericarps are glabrous, brown and not covered with bloom.