New! - Search other data sources for Festuca undata

Help - Wrong Description?

Kew Data Sources

Kew's Herbarium Catalogue
ePIC - Electronic Plant Information Centre

External Data Sources

Note - this takes you off of our website
Use your browser's back button to return to this page

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 undata

HABIT Perennial; caespitose. Butt sheaths light brown; pubescent. Basal innovations intravaginal. Culms erect, or geniculately ascending; 30–60 cm long; 2–3 -noded; with 0.5 of their length below uppermost node. Lateral branches lacking. Leaf-sheaths tubular for much of their length; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades flat, or conduplicate; 4–8 cm long; 1–2 mm wide. Leaf-blade venation with 7–9 secondary veins. Leaf-blade surface glabrous, or puberulous; hairy adaxially. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate, or ovate; 10–15 cm long. Primary panicle branches 1–2 -nate; indistinct the panicle almost racemose, or sparsely divided; 3–7 cm long. Panicle axis smooth, or scaberulous. Panicle branches flexuous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 7–9 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes scaberulous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2 mm long; 0.66 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3 mm long; 0.66 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 5 mm long; chartaceous; shiny; without keel; 5 -veined. Lemma apex acute; muticous, or mucronate, or awned; 1 -awned. Principal lemma awn 0–1.5 mm long overall. Palea 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3; 1.5–2 mm long. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-temperate: China. Asia-tropical: India.

NOTES Poeae. Fl Brit India 1994.

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