New! - Search other data sources for Deyeuxia llanganatensis

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.

Deyeuxia llanganatensis

HABIT Perennial; caespitose; clumped loosely. Rhizomes short. Culms 120–150 cm long; 3 mm diam. Culm-internodes distally glabrous. Culm-nodes brown. Leaf-sheaths mostly shorter than adjacent culm internode; striately veined; glabrous on surface. Ligule an eciliate membrane; 3–4 mm long; scaberulous on abaxial surface; erose; obtuse. Leaf-blades 15–20 cm long; 6–10 mm wide. Leaf-blade surface ribbed; grooved adaxially; scabrous; rough on both sides.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; effuse; 40–50 cm long; 10–15 cm wide. Panicle branches capillary.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels flexuous; 5–8 mm long.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5–2.7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.3 mm long; 1 length of lemma.

GLUMES Glumes persistent; similar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume lanceolate; 1 length of upper glume; membranous; purple; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.5–2.7 mm long; 1.1 length of adjacent fertile lemma; membranous; purple; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 2.3 mm long; membranous; pallid; without keel; 0 -veined. Lemma surface scaberulous. Lemma apex erose; obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33–0.5 way up back of lemma; straight; 1–1.5 mm long overall; not or scarcely exserted from spikelet. Palea 1.5 mm long; 0 -veined.

FLOWER Lodicules 2. Anthers 3; 1 mm long; purple. Stigmas 2.

FRUIT Caryopsis with adherent pericarp. Disseminule comprising a floret.

DISTRIBUTION South America: western South America.

NOTES Aveneae. Laegaard 2001.

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