Poaceae
Eragrostis

Eragrostis balgooyi Veldkamp

First published in Blumea 47: 168 (2002)
This species is accepted
The native range of this species is New Guinea (Kep. Aru). It is a perennial and 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: low confidence
[AERP]

Morphology General Habit
Perennial; caespitose. Basal innovations extravaginal and intravaginal. Culms erect; 40-80 cm long. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs. Leaf-blades 7-24 cm long; 1.5-3 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate, or ovate; 27-47 cm long; 8 cm wide. Primary panicle branches ascending; 1 -nate; 2-4.5 cm long; bearing spikelets almost to the base. Panicle branches scaberulous; bearded in axils. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1.5-5.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 20-40 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 11.5-20 mm long; 2.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes eventually visible between lemmas.
Fertile
Spikelets comprising 20-40 fertile florets; with diminished florets at the apex. Spikelets linear, or oblong; laterally compressed; 11.5-20 mm long; 2.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes eventually visible between lemmas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume lanceolate; 1-1.6 mm long; 0.5-0.7 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 2-2.5 mm long; 0.8-1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2-3 mm long; membranous; keeled; 3 -veined. Lemma lateral veins distinct. Lemma apex acuminate. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3; 0.4-0.5 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; 0.8 mm long; reticulate.
Distribution
Asia-tropical: Malesia.
Reference
Eragrostideae. Veldkamp 2002.
[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