Poaceae
Sporobolus

Sporobolus advenus (Stapf) P.M.Peterson

First published in Taxon 63: 1232 (2014)
This species is accepted
The native range of this species is E. Australia. It is a perennial and grows primarily in the subtropical 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
Perennial; caespitose. Culms erect, or geniculately ascending; 100-150 cm long. Ligule a fringe of hairs. Leaf-blades 10-30 cm long; 2-5 mm wide. Leaf-blade surface scaberulous; rough adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; continuous, or interrupted; 20-50 cm long. Primary panicle branches appressed; bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-4 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
Fertile
Spikelets comprising 3-4 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 4 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 1-1.5 mm long; 0.5-0.66 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.5-3 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile florets divergent; free at tip. Fertile lemma lanceolate; 2.5-3 mm long; membranous; keeled; 3 -veined. Lemma apex acute. Palea 2 -veined. Palea keels scabrous. Rhachilla extension 0.1 length of fertile floret.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy. Anthers 3; 0.3 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with tardily free pericarp.
Distribution
Australasia: Australia.
Reference
Eragrostideae. Tothill.
[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

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 2025. 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 2025. 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