Galium obliquum, Vili.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 29-30

87. G. obliquum Vili. , Prosp. Pl. Dauph. 19 (1779).

Like 86 but often without stolons; stems (10-)20-40(-80) cm, usually with patent hairs at the base, sometimes retrorsely aculeolate above, rarely glabrescent; leaves (6-)9-20(-25) x (0-6-)l-2(-4) mm, in whorls of (6—)7—10(— 12), (6-)7-10(-ll) times as long as wide, narrowly lanceolate to linear, thin to coriaceous; inflorescence many-flowered, broadly ovoid to pyramidal; pedicels (0-4-)0-8- 1 -8(-2-7) mm, scarcely elongating or squarrose after flowering; corolla 0'8-2(-2-7) mm in diameter, yellow, greenish or purple; lobes awned, the awn as long as lobe. 2л = 22, 44. Dry, stony places. • Cévennes, Jura, S. W. Alps, Appennini and adjacent lowlands. Ga It.

A variable polyploid complex, differentiated both ecologically and geographically, and composed of various diploid and tetraploid races. Several of the following supposed species might possibly be regarded as subspecies: G. alpicola Jordan, Obs. Pl. Crit. 3: 131 (1846), G. brachypodum Jordan, op. cit. 130 (1846) (G. corsicum subsp. brachypodum (Jordan) Arcangeli), G. gradientom Jordan, op. cit. 126 (1846), G. luteolum Jordan, op. cit. 128 (1846), G. myrianthum Jordan, op. cit. 126 (1846), G. rubidum Jordan, op. cit. 121 (1846), G. leucophaeum Gren. & Godron , Fl. Fr. 2: 28 (1851). In zones of contact 87 is sometimes difficult to distinguish from 88.