Puccinellia schischkinii Tzvelev

First published in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 17: 57 (1955)
This species is accepted
The native range of this species is Central Asia to SW. Siberia and N. China. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose; clumped moderately, or densely. Basal innovations intravaginal. Culms erect, or geniculately ascending; 20-55 cm long. Leaf-sheaths open for most of their length; smooth. Ligule an eciliate membrane; 2-3 mm long; obtuse, or acute. Leaf-blades flat, or convolute; 1-3 mm wide; stiff; grey-green. Leaf-blade surface scaberulous; rough adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear; 8-27 cm long. Primary panicle branches appressed; 4-9 cm long; naked below, or bearing spikelets almost to the base. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 5-10 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 3-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 5-10 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; 0.9-1.5 mm long; 0.5-0.6 length of upper glume; membranous; without keels; keel-less except near apex; 1 -veined. Lower glume lateral veins absent. Lower glume margins ciliolate. Lower glume apex erose; acute. Upper glume linear; 1.6-2.6 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; keel-less except near apex; 3 -veined. Upper glume margins ciliolate. Upper glume apex erose; obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2.2-3.2 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy at base. Lemma margins ciliolate; hairy above. Lemma apex erose; obtuse. Palea 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 0.7-1.2 mm long. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 1.6-1.8 mm long. Hilum punctiform.
Distribution
Asia-temperate: Siberia, Soviet Middle Asia, China, and Mongolia.
Reference
Poeae. Tsvelev 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