Dactylis L.

First published in Sp. Pl.: 71 (1753)
This genus is accepted
The native range of this genus is Macaronesia, Medit. to Temp. Eurasia.

Descriptions

nonem

Morphology General Habit
Perennial. Culms erect, or geniculately ascending; 15-140 cm long. Ligule an eciliate membrane.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong, or cuneate; laterally compressed; 5-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 2-5 fertile florets; with diminished florets at the apex. Spikelets oblong, or cuneate; laterally compressed; 5-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein ciliate. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma obovate; laterally compressed; lanceolate in profile, or oblong in profile; herbaceous; much thinner on margins; keeled; 5 -veined. Lemma midvein pectinately ciliate. Lemma lateral veins extending close to apex. Lemma apex acuminate; awned; 1 -awned. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Ovary glabrous.
Morphology Reproductive morphology Fruits
Hilum punctiform.
Distribution
Europe, or Africa, or Temperate Asia, or Tropical Asia, or Australasia, or Pacific, or North America, or South America, or Antarctica.
[GB]

Gramineae, W. D. Clayton, S. M. Phillips And S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit
Tufted perennials
Morphology Leaves
Leaf-blades flat
Morphology Reproductive morphology Inflorescences
Inflorescence a lobed, 1-sided, condensed panicle, the branches crowded with compact fascicles of spikelets
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2–5-flowered, strongly laterally compressed, almost sessile; glumes persistent, unequal, 1–3-nerved; lemmas strongly compressed and keeled, herbaceous with membranous margins, 5-nerved, shortly awned; palea shorter than or as long as the lemma.
[FTEA]

Sources

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • 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