Puccinellia macropus V.I.Krecz.

First published in V.L.Komarov (ed.), Fl. URSS 2: 489 (1934)
This species is accepted
The native range of this species is Central Asia. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose; clumped densely. Butt sheaths persistent and investing base of culm; with fibrous dead sheaths. Culms erect; 40-50 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane. Leaf-blades erect; involute; 1.9-2 mm wide; stiff; grey-green.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; 3-10 cm long. Primary panicle branches appressed. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; compressed slightly; 2-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 2-3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; compressed slightly; 2-5 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume linear; 1 mm long; 0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume linear; 2 mm long; 0.75-1 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2-2.5 mm long; membranous; much thinner above; purple and yellow; bordered with last colour; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma apex acute. Palea 2 -veined. Palea keels scaberulous; adorned all along. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 1.2-1.5 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
Asia-temperate: Soviet Middle Asia.
Reference
Poeae. Fl USSR 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