Poaceae
Eragrostis

Eragrostis gulliveri (F.Muell.) R.L.Barrett & P.M.Peterson

First published in Austral. Syst. Bot. 33: 471 (2020)
This species is accepted
The native range of this species is N. Queensland. It is an annual and grows primarily in the seasonally dry 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: not threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual; caespitose. Culms erect, or geniculately ascending; 15-40 cm long; 2-4 -noded. Leaf-sheaths glabrous on surface, or pilose. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs. Leaf-blades flat, or convolute; 5-12 cm long; 1-1.5 mm wide; stiff. Leaf-blade surface pilose; moderately hairy; hairy adaxially. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; interrupted; 3-15 cm long; 1-4 cm wide; contracted about primary branches. Primary panicle branches spreading, or reflexed; 0.5-2 cm long; bearing spikelets almost to the base. Panicle branches pilose. Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; ciliate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1-4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4-5.5 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Rhachilla internodes pubescent. Floret callus pubescent; acute.
Fertile
Spikelets comprising 1-4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4-5.5 mm long; breaking up at maturity; disarticulating above glumes but not between florets. Rhachilla internodes pubescent. Floret callus pubescent; acute.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume lanceolate; 1.5-2.5 mm long; 0.75-0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume margins ciliolate. Lower glume apex acute, or acuminate. Upper glume lanceolate; 2-3 mm long; 0.6-0.7 length of adjacent fertile lemma; membranous; 1-keeled; 1-3 -veined. Upper glume primary vein scaberulous. Upper glume margins ciliolate. Upper glume apex acute, or acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile florets recurved at tip. Fertile lemma oblong; 3-5 mm long; coriaceous; keeled; 5-7 -veined. Lemma midvein ciliate. Lemma lateral veins ribbed. Lemma surface pubescent. Lemma margins ciliate. Lemma apex acuminate, or setaceously attenuate; mucronate. Palea 2 -veined. Palea keels winged; narrowly winged; ciliolate. Apical sterile florets 3-4 in number; barren; separate; rudimentary. Apical sterile lemmas awned. Apical sterile lemma awns 3-4 mm long.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3; 0.3-0.5 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 1 mm long.
Distribution
Australasia: Australia.
Reference
Eragrostideae. CEH.
[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

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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