Poaceae
Sporobolus

Sporobolus scabridus S.T.Blake

First published in Pap. Dept. Biol. Univ. Queensland 1(18): 5 (1941)
This species is accepted
The native range of this species is S. Northern Territory to Queensland. It is a perennial and grows primarily in the desert or dry shrubland 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. Basal innovations extravaginal. Culms erect, or geniculately ascending; 20-60 cm long; 3-4 -noded. Culm-internodes scaberulous. Lateral branches lacking, or sparse. Leaf-sheaths keeled; scaberulous; glabrous on surface; outer margin glabrous, or hairy. Leaf-sheath oral hairs bearded. Ligule a fringe of hairs; 0.8 mm long. Collar glabrous. Leaf-blades straight; 6-13.5 cm long; 2-4 mm wide. Leaf-blade surface scaberulous; rough on both sides; glabrous, or pilose; sparsely hairy; with tubercle-based hairs. Leaf-blade margins cartilaginous; scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 4-14 cm long; contracted about secondary branches. Primary panicle branches 2-4 -nate; whorled at lower nodes; 3-7 cm long. Panicle axis eglandular; scabrous. Panicle branches stiff; scaberulous. Spikelets appressed; solitary. Fertile spikelets sessile, or pedicelled. Pedicels 0-0.8 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.1-1.4 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.1-1.4 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; reaching apex of florets. Lower glume lanceolate; 0.5-0.7 mm long; 0.4-0.5 length of upper glume; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1.1-1.4 mm long; 1 length of adjacent fertile lemma; hyaline; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface puberulous. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 1.1-1.4 mm long; hyaline; without keel; 1 -veined. Lemma surface glabrous, or puberulous. Lemma apex obtuse. Palea readily splitting down midline; 2 -veined. Palea keels approximate.
Morphology Reproductive morphology Flowers
Anthers 3; 0.3-0.35 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with free soft pericarp; obovoid; laterally compressed; 0.55-0.6 mm long; truncate.
Distribution
Australasia: Australia.
Reference
Eragrostideae. Blake 1994.
[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