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.

Anisopogon

HABIT Perennial. Culms 50–100 cm long. Ligule a ciliolate membrane. Leaf-blades coriaceous; stiff. Leaf-blade apex pungent.

INFLORESCENCE Inflorescence a panicle.

Panicle open.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets linear; laterally compressed; 40–50 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; pubescent; pungent.

GLUMES Glumes persistent; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 1 length of upper glume; herbaceous; without keels; 7–11 -veined. Lower glume lateral veins ribbed. Lower glume surface without pits. Lower glume apex obtuse. Upper glume lanceolate; 2.5–3 length of adjacent fertile lemma; herbaceous; without keels; 7–11 -veined. Upper glume lateral veins ribbed. Upper glume apex obtuse.

FLORETS Fertile lemma linear; subterete; coriaceous; much thinner above; without keel; wingless; 7 -veined. Lemma surface unwrinkled; without grooves; pubescent. Lemma margins involute; covering most of palea. Lemma apex lobed; 2 -fid; incised 0.25 of lemma length; awned; 3 -awned. Principal lemma awn from a sinus; geniculate. Lateral lemma awns shorter than principal. Palea 1 length of lemma; scarious; 2 -veined. Palea keels approximate. Palea apex dentate.

FLOWER Lodicules 3; membranous; acute. Ovary pubescent all over.

FRUIT Caryopsis with tardily free pericarp.

DISTRIBUTION Australasia.

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