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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 panciciana
HABIT Perennial; caespitose. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Basal innovations intravaginal. Culms 15–35 cm long. Culm-internodes smooth, or scaberulous; distally glabrous, or pubescent. Leaf-sheaths open for most of their length; with 0.25–0.33 of their length closed; with flat margins; glabrous on surface, or pubescent. Leaf-sheath auricles erect; obtuse. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades filiform; conduplicate; angular in section; 0.3–0.6 mm wide. Leaf-blade venation comprising 5 vascular bundles; with 3 inner ridges; with 5 subepidermal sclerenchyma strands; with subepidermal sclerenchyma free from veins; without layer of subepidermal sclerenchyma masking vein striation, or with sclerenchyma strands widened to form a discontinuous subepidermal layer, or with unevenly thickened subepidermal sclerenchyma layer on the underside. Leaf-blade surface scabrous; glabrous, or pubescent. Leaf-blade apex obtuse.
INFLORESCENCE Inflorescence a panicle.
Panicle open; dense; 3–6 cm long. Panicle branches puberulous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7.8–9.1 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes obscured by lemmas.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3.4–5 mm long; 0.66–0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acuminate.
FLORETS Fertile lemma oblong; 5.2–6.2 mm long; chartaceous; glaucous, or purple; without keel; 5 -veined. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 2.6–3.5 mm long overall. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2. Anthers 3. Ovary glabrous.
FRUIT Caryopsis with adherent pericarp; ellipsoid. Hilum linear. Disseminule comprising a caryopsis and palea.
DISTRIBUTION Europe: southeastern.
NOTES Poeae. Fl Eur 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
