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.

Chrysochloa hubbardiana

HABIT Annual; caespitose. Basal innovations flabellate. Culms 40–60 cm long. Leaf-sheaths keeled. Ligule a ciliolate membrane. Leaf-blades flat, or conduplicate; 5–16 cm long; 6–8 mm wide. Leaf-blade apex obtuse.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 4–6; digitate; unilateral; 4–11 cm long. Rhachis flattened. Spikelet packing broadside to rhachis; regular; 1–2 -rowed.

Spikelets ascending; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; compressed strongly; 3–4 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes lower persistent, upper deciduous; similar; exceeding apex of florets, or reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 3–4 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 3–4 mm long; 1–1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute; mucronate, or awned; 1 -awned. Upper glume awn 0.1–0.5 mm long.

FLORETS Fertile lemma ovate; laterally compressed; 2.5–3 mm long; coriaceous; keeled; 3 -veined. Lemma midvein ciliate. Lemma lateral veins close to margins. Lemma margins ciliate. Lemma apex acute; awned; 1 -awned. Principal lemma awn subapical; 1–3 mm long overall. Palea 2 -veined. Apical sterile florets 1 in number; barren; lanceolate; 2 mm long.

FLOWER Anthers 3; 1.3–1.5 mm long.

FRUIT Caryopsis with adherent pericarp; ellipsoid; trigonous.

DISTRIBUTION Africa: west-central tropical and east tropical.

NOTES Cynodonteae. FTEA.

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