Poaceae
Sporobolus

Sporobolus mobberleyanus P.M.Peterson & Saarela

First published in Taxon 63: 1236 (2014)
This species is accepted
The native range of this species is Tristan da Cunha, Amsterdam Island. It is a perennial and grows primarily in the temperate 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. Rhizomes short. Culms erect; 100-150 cm long. Leaf-sheath oral hairs ciliate. Ligule a fringe of hairs; 1 mm long. Leaf-blades involute; 3-10 mm wide. Leaf-blade surface smooth, or scabrous. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes numerous; 20-50; borne along a central axis; closely spaced; in a multilateral false spike; appressed; unilateral; 2-4 cm long; bearing 20-40 fertile spikelets on each. Central inflorescence axis 8-16 cm long. Rhachis angular; smooth on margins to scabrous on margins; glabrous on margins; terminating in a spikelet. Spikelet packing broadside to rhachis; regular; 2 -rowed. Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels 1 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-12 mm long; 1-3 mm wide; falling entire.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 6-12 mm long; 1-3 mm wide; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets. Lower glume linear; 4-10 mm long; 0.6-0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 6-12 mm long; 1.5 length of adjacent fertile lemma; herbaceous; 1-keeled; 1-3 -veined. Upper glume primary vein scabrous. Upper glume surface smooth to scabrous. Upper glume margins smooth, or scaberulous. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 4-10 mm long; herbaceous; keeled; 3 -veined. Lemma midvein scabrous. Lemma surface smooth, or scaberulous. Lemma apex emarginate. Palea 2 -veined.
Morphology Reproductive morphology Flowers
Lodicules absent. Anthers 3; 2.5-3 mm long.
Distribution
Antarctic: Subantarctic islands.
Reference
Cynodonteae. Mobberley 1993.
[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