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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.
Puccinellia ladyginii
HABIT Perennial; caespitose; clumped densely. Butt sheaths withering. Basal innovations intravaginal. Culms erect, or geniculately ascending; 15–32 cm long; 2 -noded. Culm-internodes smooth. Leaf-sheaths open for most of their length; smooth. Ligule an eciliate membrane; 1–2 mm long; obtuse. Leaf-blades flat; 1–6 cm long; 1–2 mm wide. Leaf-blade surface smooth, or scaberulous; rough adaxially; glabrous. Leaf-blade apex obtuse.
INFLORESCENCE Inflorescence a panicle.
Panicle open; ovate; 5–8 cm long. Primary panicle branches spreading; 2 -nate. Panicle branches smooth, or scaberulous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 6–9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
GLUMES Glumes persistent; shorter than spikelet. Lower glume lanceolate, or ovate; 1.5–1.9 mm long; 0.66–0.9 length of upper glume; membranous; much thinner on margins; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume lanceolate, or ovate; 1.9–2.6 mm long; 0.75 length of adjacent fertile lemma; membranous; with hyaline margins; without keels; 3 -veined. Upper glume apex obtuse, or acute.
FLORETS Fertile lemma lanceolate; 2.6–3.4 mm long; membranous; much thinner above; much thinner on margins; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma margins ciliolate. Lemma apex obtuse, or acute. Palea 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Anthers 3; 1.3–2 mm long.
FRUIT Hilum punctiform.
DISTRIBUTION Asia-temperate: China.
NOTES Poeae. Tsvelev 2001.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.