Festuca curvula, Gaudin

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 150

147. F. curvula Gaudin , Agrost. Helv. 1: 239 (1811).

Densely caespitose. Stems 25-40(-60) cm, smooth or scabrid above. Leaves (0-6-)0-8-l-l(-l-35) mm wide; sclerenchyma-ring unequally thickened, sometimes interrupted; ribs 3-5; sheaths closed for up to j of their length. Panicle 5-11 cm, rather dense, the branches scabrid. Spikelets (7-5—)8—11 with (3-)4-6 florets, green to glaucous. Upper glume 4-6-3 x (l-2-)l-4-2 mm, lanceolate, acuminate, glabrous or ciliate or scabrid above. Lemma lanceolate, acuminate; awn (i -) | as long as lemma. Dry grassland, rocks and screes. • From the Pyrenees to the E. Alps. Au Ga He It.

1 Upper glume with a distinct scarious margin (b) subsp. crassifolia 1 Upper glume without a scarious margin 2 Leaves usually not more than half as long as stems; sclerenchyma-ring thickened at midrib and margin, often interrupted (a) subsp. curvula 2 Leaves usually about as long as stems; sclerenchyma-ring not or scarcely thickened at midrib and margin, not interrupted

(c) subsp. cagiriensis