GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Agropogon

HABIT Perennial. Culms geniculately ascending, or decumbent; slender; 8–60 cm long. Lateral branches sparse. Ligule an eciliate membrane.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2–3 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume elliptic, or oblong; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous; without pits. Lower glume apex emarginate; awned. Upper glume elliptic, or oblong; 1.5–2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume surface asperulous. Upper glume apex emarginate; awned; 1 -awned.

FLORETS Fertile lemma elliptic, or oblong; hyaline; without keel; wingless; 5 -veined. Lemma surface unwrinkled; without grooves. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn subapical. Palea 0.75 length of lemma; hyaline; 2 -veined.

FLOWER Lodicules 2; membranous. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Europe, or Africa, or Temperate Asia, or Tropical Asia, or Australasia, or North America, or South America.

Please cite this publication as detailed in How to Cite Version: 27th January 2014.