Puccinellia preslii (Hack.) Ponert

First published in Feddes Repert. 84: 740 (1974)
This species is accepted
The native range of this species is N. & Central Chile to W. Argentina. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Culms 10-15 cm long. Culm-internodes terete; distally glabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane. Leaf-blade margins scaberulous. Leaf-blade apex obtuse.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Peduncle scaberulous above. Panicle contracted; linear; 6 cm long. Panicle axis glabrous. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets sessile, or pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume ovate; 0.5 length of upper glume; membranous; without keels. Lower glume apex obtuse. Upper glume ovate; 0.66 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy below; hairy on back. Lemma apex erose; obtuse. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum punctiform.
Distribution
South America: southern South America.
Reference
Poeae. Presl 2000.
[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