Galium rourkei Puff

Perennial. Stems ± much-branched, delicate, ± prostrate, c. 100-200 mm long and c. 0.5-1 mm in diam., ± distinctly 4-angled, at least younger parts with curved or straight white hairs on the angles, c. 0.4-0.
 long. Longest internodes c. 8-12(17) mm. Middle cauline leaves in whorls of 4-5(-6), 1-nerved, 5-7 x (2)2.5-5 mm, oblanceolate to spathulate, with a distinct, rigid point at the apex, up to 1 mm long; with straight or curved hairs, c. 0.3-0.6 mm long on the upper and lower surface and margins; margins straight. Synflorescences much-reduced; partial inflorescences 2-flowered; peduncles 1.5-5 mm long, hairy; pedicels filiform, hairy, 1.5-3 mm at anthesis, to 6 mm and divaricate in fruit, only rarely subtended by lanceolate bracts, c. 1.5 x 0.5 mm, Flowers strongly protandrous, 4-merous; corolla (2.5)3-3.5(4) mm in diam., rotate, creamy-white; lobes ± ovate, longer than wide, acute, with a few white, straight or curved hairs on the margins; stamens c. 1-1.5 mm long, filaments filiform, anthers brownish, ± ellipsoidal; styles very short, 0.5 mm or less, stigma ±capitate. Buds ± ovoidal. Fruits dry, blackish, covered with white spreading hairs, c. 0.3-0.5 mm long; mericarps ± globose, each c. 1.5-
 in diam.; often only one mericarp developed. Average pollen diameter: 7.63 µm.