Family:
Poaceae Barnhart
Genus:
Echinochloa P.Beauv.

Echinochloa jaliscana McVaugh

This species is accepted, and its native range is Mexico.

[GB]
Morphology General Habit
Annual; caespitose. Culms erect; 30-60 cm long. Leaf-sheaths glabrous on surface. Ligule a fringe of hairs; 0.7-1.5 mm long. Leaf-blades 10-15 cm long; 7-9 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 5-10; borne along a central axis; unilateral; 2-3 cm long. Central inflorescence axis 4-11 cm long. Rhachis angular. Spikelet packing crowded; irregular; 2-4 -rowed. Spikelets in pairs. Fertile spikelets sessile and pedicelled; subequal. Pedicels oblong.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; plano-convex; acuminate; 5-6 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; plano-convex; acuminate; 5-6 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.33-0.5 length of spikelet; without keels; 5 -veined. Lower glume surface scabrous. Lower glume apex cuspidate. Upper glume ovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface hispid. Upper glume apex cuspidate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; hispid; acuminate; mucronate, or awned. Awn of lower sterile floret terminal; 0.5-1 mm long. Palea of lower sterile floret 0-1 mm long. Fertile lemma ovate; gibbous; 3.3-4 mm long; 2.3-2.5 mm wide; indurate; pallid, or yellow; without keel. Lemma margins involute. Lemma apex apiculate. Palea reflexed at apex; indurate.
Morphology Reproductive morphology Flowers
Anthers 3.
Distribution
North America: Mexico.
Reference
Paniceae. Fl Nov Gal 1997.

Native to:

Mexico Central, Mexico Northeast, Mexico Southwest

Echinochloa jaliscana McVaugh appears in other Kew resources:

First published in Fl. Novo-Galiciana 14: 153 (1983)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 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.

Literature

Kew Backbone Distributions

  • 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.

  • 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 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