Festuca inguschetica

HABIT Perennial. Leaf-sheaths tubular for much of their length; with 0.5 of their length closed; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades filiform; conduplicate; 0.6–0.85 mm wide. Leaf-blade venation with 7–9 secondary veins; 3–5 inner ridges; with unevenly thickened subepidermal sclerenchyma layer on the underside, or with continuous uniform subepidermal sclerenchyma layer on the underside. Leaf-blade surface puberulous; hairy adaxially.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 4.5–6 cm long. Panicle axis scabrous. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets with diminished florets at the apex. Spikelets oblong; laterally compressed; 7.5–8.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 0.7–0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma oblong; 4.2–4.6 mm long; chartaceous; without keel; 5 -veined. Lemma apex acute; awned; 1 -awned. Principal lemma awn 1.5–2.2 mm long overall. Palea 2 -veined. Palea keels ciliolate; adorned above; with 0.33 of their length adorned. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3; 2–2.5 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; glabrous. Hilum linear.

DISTRIBUTION Asia-temperate: Caucasus.

NOTES Poeae. Alexeev 1995.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.