GrassBase - The Online World Grass Flora


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

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

Danthoniopsis chevalieri

HABIT Perennial; caespitose. Butt sheaths villous. Culms erect; 120–200 cm long; 3–4 -noded. Culm-nodes pubescent. Ligule a fringe of hairs. Leaf-blades linear, or lanceolate; 30–60 cm long; 10–20 mm wide. Leaf-blade surface glabrous, or pubescent; hairy adaxially; with tubercle-based hairs. Leaf-blade margins cartilaginous; entire; scabrous.

INFLORESCENCE Inflorescence a panicle. Peduncle glandular.

Panicle open; oblong, or ovate; 20–27 cm long. Panicle branches glandular (on axis); scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1–8 mm long.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 8–10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5 mm long; pubescent; truncate.

GLUMES Glumes persistent; reaching apex of florets; thinner than fertile lemma. Lower glume elliptic; 5–6 mm long; 0.5 length of upper glume; chartaceous; yellow, or purple; without keels; 3 -veined. Lower glume apex cuspidate. Upper glume elliptic; 8–10 mm long; 1 length of spikelet; chartaceous; yellow, or purple; without keels; 3 -veined. Upper glume apex acuminate.

FLORETS Basal sterile florets male; with palea; separately deciduous. Lemma of lower sterile floret similar to upper glume; oblong; 8–10 mm long; 1 length of spikelet; membranous; 5–7 -veined; acuminate. Palea of lower sterile floret scabrous. Fertile lemma oblong; 5–5.5 mm long; coriaceous; without keel; 7 -veined. Lemma surface pilose; with a transverse fringe of hair. Lemma margins involute; interlocking with palea keels. Lemma hairs 2–3 mm long. Lemma apex lobed; 2 -fid; with triangular lobes; incised 0.3 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; flat below; 7–8 mm long overall; with twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 3–4 mm long. Palea 2 -veined. Palea keels approximate; thickened; winged; narrowly winged. Palea surface papillose.

FLOWER Anthers 3; 3–4 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Africa: west tropical.

NOTES Arundinelleae. FTA.

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