Family:
Poaceae Barnhart
Genus:
Sporobolus R.Br.

Sporobolus wrightii Scribn.

This species is accepted, and its native range is Central & S. U.S.A. to Mexico.

[GB]
Morphology General Habit
Perennial; caespitose. Culms erect; robust; 90-250 cm long; 2-9 mm diam. Leaf-sheaths without keel. Ligule a fringe of hairs; 1-2 mm long. Leaf-blades 20-70 cm long; 3-6 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate; 20-60 cm long; 12-26 cm wide. Panicle branches bearing congested spikelets. Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels 0.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.5-2.1 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.5-2.1 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; shorter than spikelet. Lower glume ovate; 0.5-1 mm long; 0.5-0.66 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.8-1.8 mm long; 0.66-0.9 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 1.2-2.1 mm long; membranous; without keel; 1 -veined. Lemma apex obtuse. Palea 2 -veined. Palea keels approximate.
Morphology Reproductive morphology Flowers
Anthers 3.
Morphology Reproductive morphology Fruits
Caryopsis with free soft pericarp; 1.3 mm long.
Distribution
North America: southwest USA, south-central USA, and Mexico.
Reference
Eragrostideae. Gr Tex 1993.

Native to:

Arizona, California, Mexico Central, Mexico Northeast, Mexico Northwest, New Mexico, Oklahoma, South Carolina, Texas, Utah

Introduced into:

Egypt

Sporobolus wrightii Scribn. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Pringle, C.G. [s.n.], USA K000307935 isotype Yes
Wright, C. [726], USA K000307938 Yes
Wright, C. [1975], USA K000307939 Yes

First published in Bull. Torrey Bot. Club 9: 103 (1882)

Accepted by

  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
  • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
  • Powell, A.M. & Worthington, R.D. (2018). Flowering plants of Trans-Pecos Texas and ajacent areas: 1-1444. BRIT Press.

Literature

Kew Backbone Distributions

  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
  • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

  • 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 Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0