Galium monticola Sond.

Perennial with a ± woody rootstock. Stems ascending to erect, ca. 0.3-1.2 m long, usually with many lateral branches; ca. 2.5 mm in diam., densely covered with short, spreading hairs, distinctly 4-angled, except ± terete near the base; sometimes purplish. Longest internodes 12-17(25) mm. Middle cauline leaves in whorls of (6-)8-10, 1-nerved, 5-8(12) x 0.6-0.8(1) mm, linear, with a long whitish, sometimes upturned mucro at the apex, often apparently terete due to the strongly reflexed margins; upper surface, midrib beneath and margins densely covered with ± long, white spreading hairs. Synflorescences ± cylindrical, paracladia relatively few-flowered, flowers arranged in groups of (5)4-1, ultimate branches with (5)3-1(0) minute, linear hairy bracts; peduncles 0.8-1.5 mm, ± thickish, hairy, pedicels 0.8-1.5(2) mm, filiform, glabrous, divaricate after anthesis. Flowers 4-merous; corolla (1.5)1.7-2(2.3) mm in diam., rotate, colour unknown; lobes longer than wide, acuminate; stamina ca. 1/4 of lobe length, anthers roundish; styles short, ca. half or less fused. Young gynoeceum glabrous, ± granulate; mature fruits not seen.