New! - Search other data sources for Puccinellia fasciculata

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.

Puccinellia fasciculata

HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 6–60 cm long; 1–3 -noded. Leaf-sheaths open for most of their length; without keel; smooth. Ligule an eciliate membrane; 1–2.5 mm long. Leaf-blades 2–16 cm long; 1.5–5 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex obtuse, or abruptly acute; hooded.

INFLORESCENCE Inflorescence a panicle.

Panicle open, or contracted; lanceolate, or oblong, or ovate; secund; 2.5–18 cm long. Primary panicle branches ascending; bearing spikelets almost to the base. Panicle branches stiff; scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 3–8 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; dissimilar; shorter than spikelet. Lower glume ovate; 1–1.5 mm long; 0.6–0.8 length of upper glume; membranous; much thinner on margins; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1.5–1.8 mm long; 0.75–0.8 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; 1.8–2.3 mm long; membranous; much thinner above; much thinner on margins; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface puberulous; hairy below. Lemma apex erose; obtuse; mucronate. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 0.6–1 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; ellipsoid; 1.5 mm long. Embryo 0.2 length of caryopsis. Hilum punctiform.

DISTRIBUTION Europe: northern, central, southwestern, and southeastern. Africa: south. Australasia: Australia and New Zealand. North America: eastern Canada, northeast USA, southwest USA, and southeast USA.

NOTES Poeae. CEH.

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