Poaceae
Sporobolus

Sporobolus multiramosus Longhi-Wagner & Boechat

First published in Acta Bot. Brasil. 7: 152 (1993)
This species is accepted
The native range of this species is N. Brazil. It is an annual 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
Annual; caespitose. Basal innovations intravaginal. Culms geniculately ascending; slender; 18-50 cm long; 0.5 mm diam.; 6-7 -noded. Lateral branches ample. Leaf-sheaths mostly shorter than adjacent culm internode; glabrous on surface. Leaf-sheath oral hairs ciliate; 1-1.2 mm long. Ligule a fringe of hairs; 0.3-4 mm long. Leaf-blades flat, or conduplicate, or involute, or convolute; 2-13 cm long; 1-1.8 mm wide. Leaf-blade margins glabrous, or ciliate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; terminal and axillary. Panicle spiciform; linear; 3-7 cm long; 0.2-0.3 cm wide. Primary panicle branches appressed; 0.4-1.3 cm long. Panicle axis glandular. Spikelets solitary. Fertile spikelets pedicelled. Pedicels glandular.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2-2.4 mm long; 0.8-1 mm wide; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 2-2.4 mm long; 0.8-1 mm wide; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; exceeding apex of florets. Lower glume oblong; 2-2.4 mm long; 0.5 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 2-2.4 mm long; 1.1 length of adjacent fertile lemma; membranous; without keels; 1-3 -veined. Upper glume lateral veins absent, or obscure. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2-2.2 mm long; 0.3-0.5 mm wide; membranous; without keel; 1 -veined. Lemma apex acute. Palea 1.8-2.2 mm long; 2 -veined. Palea keels approximate. Palea apex cuspidate.
Morphology Reproductive morphology Flowers
Anthers 3; 0.5-0.8 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with free soft pericarp; oblong; without sulcus; 1.7-2 mm long; dark brown.
Distribution
South America: Brazil.
Reference
Eragrostideae. Longhi-Wag 2001.
[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 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