HABIT Annual (2), or perennial (4). Rhizomes absent (3), or elongated (3). Culms erect, or geniculately ascending (1), or decumbent (1); 10–64.16–180 cm long. Ligule an eciliate membrane. Leaf-blades linear, or lanceolate (1); firm (4), or flaccid (2).
INFLORESCENCE Inflorescence a panicle.
Panicle open (3), or contracted (3).
Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform (3/4), or linear (1/4).
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic (4), or ovate (2); dorsally compressed; 2–3.174–4 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; reaching apex of florets (3), or exceeding apex of florets (4); thinner than fertile lemma. Lower glume elliptic (3), or oblong (2), or ovate (3); 1 length of upper glume; membranous; without keels, or 1-keeled (1); 3 -veined. Lower glume surface asperulous; without pits. Lower glume apex obtuse (1/5), or acute (4/5). Upper glume elliptic (3), or oblong (2), or ovate (3); 1–1.133–1.5 length of adjacent fertile lemma; membranous; without keels, or 1-keeled (1); 3 -veined. Upper glume surface asperulous. Upper glume apex obtuse (1/5), or acute (4/5).
FLORETS Fertile lemma elliptic (3), or ovate (3); dorsally compressed; indurate; without keel; wingless; 5 -veined. Lemma surface unwrinkled; without grooves. Lemma apex obtuse. Palea 1 length of lemma; indurate; 2 -veined; without keels.
FLOWER Lodicules 2 (5/5). Anthers 3.
FRUIT Caryopsis with adherent pericarp (5/5); ellipsoid (3/3); dorsally compressed (3/3). Embryo 0.2 length of caryopsis. Hilum punctiform (2/5), or elliptic (3/5).
DISTRIBUTION Europe (2), or Africa (1), or Temperate Asia, or Tropical Asia (1), or North America (1).
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.