Zingeria biebersteiniana

HABIT Annual. Culms erect; 8–38 cm long; 3 -noded. Ligule an eciliate membrane; 0.9–3.5 mm long; obtuse. Leaf-blades flat, or convolute; 0.8–7 cm long; 0.4–2 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; effuse; 4–15 cm long; 3–18 cm wide. Primary panicle branches 2–3 -nate; 1.5–10 cm long. Panicle branches capillary.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels cuneate; 5–13 mm long; glabrous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 1.3–2 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; reaching apex of florets, or shorter than spikelet. Lower glume elliptic; 1.3–2 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume elliptic; 1.3–2 mm long; 0.9–1 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse, or acute.

FLORETS Fertile lemma elliptic; 1.3–2 mm long; membranous, or chartaceous; without keel; 3 -veined. Lemma surface pubescent; with clavate hairs. Lemma apex obtuse. Palea 0.9 length of lemma; 2 -veined. Palea surface pubescent; hairy on back; with turgid hairs.

FLOWER Anthers 3; 0.5–0.7 mm long.

FRUIT Caryopsis with adherent pericarp; oblong; dorsally compressed; pitted. Embryo 0.2 length of caryopsis. Hilum elliptic.

DISTRIBUTION Europe: eastern. Asia-temperate: Caucasus and western Asia.

NOTES Aveneae. Fl Turk.

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