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.

Aristida schebehliensis

HABIT Perennial; caespitose. Culms 30–50 cm long; wiry. Ligule a fringe of hairs. Leaf-blades involute; 15–30 cm long; 1.5–2 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 10 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 18–20 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; thinner than fertile lemma. Lower glume lanceolate; (10.5–)12–13 mm long; 0.6–0.7 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn (5–)8–9 mm long. Upper glume lanceolate; 18–20 mm long; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn (6.5–)13–14 mm long.

FLORETS Fertile lemma lanceolate; subterete; coriaceous; without keel; 3 -veined. Lemma margins convolute; covering most of palea. Lemma apex acute; awned; 3 -awned. Principal lemma awn 3-branched; with 50–65 mm long limb; with twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 10 mm long. Lateral lemma awns 50–65 mm long; subequal to principal. Palea without keels.

FLOWER Anthers 3.

DISTRIBUTION Africa: northeast tropical.

NOTES Aristideae. TAC.

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