Poaceae
Eragrostis

Eragrostis dyskritos Lasut

First published in Reinwardtia 13: 31 (2009)
This species is accepted
The native range of this species is Sulawesi. It grows primarily in the wet tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual; caespitose. Basal innovations intravaginal. Culms erect; 35-55 cm long. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Collar pilose. Leaf-blades 9-13 cm long; 1-2 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong; 20-23 cm long; 5-7 cm wide. Primary panicle branches appressed, or ascending; 1-5 -nate; 5-8 cm long. Panicle branches scaberulous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 6-13 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-14 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 4-5 mm long; 1-1.5 mm wide; breaking up at maturity; rhachilla persistent; shedding paleas. Rhachilla internodes obscured by lemmas, or eventually visible between lemmas.
Fertile
Spikelets comprising 4-14 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 4-5 mm long; 1-1.5 mm wide; breaking up at maturity; rhachilla persistent; shedding paleas. Rhachilla internodes obscured by lemmas, or eventually visible between lemmas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 0.5-0.6 mm long; 0.5 length of upper glume; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.1-1.2 mm long; 0.6 length of adjacent fertile lemma; hyaline; 0(-1) -veined. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 1.7-2 mm long; membranous; keeled; 3 -veined. Lemma apex acute. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3; 0.2 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; laterally compressed; without sulcus; 0.7-0.8 mm long; dark brown.
Distribution
Asia-tropical: Malesia.
Reference
Eragrostideae. Lacut 2011.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). 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 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 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 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0