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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.
Festuca ambilobensis
HABIT Perennial; caespitose; clumped loosely. Culms erect; 70–80 cm long. Culm-internodes striate; smooth; distally glabrous. Lateral branches ample. Leaf-sheaths striately veined; smooth. Ligule an eciliate membrane. Leaf-blades 20–22 cm long; 8 mm wide; light green. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence a panicle.
Panicle open. Primary panicle branches spreading; 5–6 cm long. Panicle branches flexuous.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 1–3 mm long.
FERTILE SPIKELETS Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 14–17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1.5–2 mm long; pilose.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3.4–4 mm long; 0.5 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 7–8 mm long; 0.75 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acuminate; muticous.
FLORETS Fertile lemma lanceolate; 8–10 mm long; chartaceous; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface asperulous; rough above. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn subapical; 6–8 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
DISTRIBUTION Africa: western Indian ocean.
NOTES Poeae. Camus 2007.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.