Puccinellia poecilantha (K.Koch) Grossh.

First published in Opred. Rast. Kavk.: 706 (1949)
This species is accepted
The native range of this species is Caucasus to Central Asia and Qinghai. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Culms geniculately ascending; 20-40 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane. Leaf-blades 3-6 cm long; 2-3 mm wide; stiff; glaucous. Leaf-blade surface smooth; glabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong; 10-15 cm long. Primary panicle branches ascending. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 6-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 6-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
Fertile
Spikelets comprising 6-9 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 6-8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume elliptic; 1.5 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume margins ciliolate. Lower glume apex obtuse. Upper glume elliptic; 2 mm long; 0.66-0.8 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume margins ciliolate. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma obovate; 2.5-3 mm long; membranous; much thinner above; purple; without keel; rounded except near apex; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pilose; hairy below; hairy on veins. Lemma margins ciliate. Lemma apex obtuse; mucronate. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 1.5-2 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Europe: eastern. Asia-temperate: Soviet Middle Asia, Caucasus, western Asia, and China.
Reference
Poeae. Fl Iran 1995.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0