Poa greuteri

HABIT Perennial; caespitose. Rhizomes short. Stolons present. Basal innovations extravaginal. Culms erect; 13–15 cm long. Culm-internodes smooth; distally glabrous. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths open for most of their length; with 0.5–0.66 of their length closed; keeled. Ligule an eciliate membrane; 0.5–1 mm long; lacerate; truncate. Leaf-blades conduplicate; 15–25(–30) cm long; 2 mm wide. Leaf-blade surface glabrous. Leaf-blade apex abruptly acute; apiculate.

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform; elliptic, or oblong; 2 cm long; 1 cm wide.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 3–4 mm long; 2 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate, or ovate; 1.5–2.5 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume lateral veins prominent. Lower glume apex acute. Upper glume lanceolate, or ovate; 1.5–2.5 mm long; 0.5–0.66 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein conspicuous. Upper glume apex acute.

FLORETS Fertile lemma ovate; 3–3.5 mm long; membranous; much thinner above; shiny; keeled; 5 -veined. Lemma midvein scabrous. Lemma apex acute. Palea 1 length of lemma. Palea keels scabrous; adorned above. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 0.5–1 mm long; pallid.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: Caucasus.

NOTES Poeae. Gabrielian 2008.

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