Family:
Poaceae Barnhart

Gynerium Willd. ex P.Beauv.

This genus is accepted, and its native range is Mexico to Tropical America.

[GB]

nonem

Morphology General Habit
Perennial. Rhizomes elongated. Culms erect; reed-like; 300-1000 cm long. Ligule a ciliolate membrane.
Morphology Reproductive morphology Inflorescences
Dioecious. Inflorescence a panicle. Panicle open. Spikelets solitary. Fertile spikelets pedicelled. Male inflorescence similar to female; a panicle. Male spikelets distinct from female. Male spikelet glumes 2.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; glabrous, or pilose.
Fertile
Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; glabrous, or pilose.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; exceeding apex of florets; recurved at apex. Lower glume linear; 0.3-0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume linear; 1.5-2 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex caudate.
Morphology Reproductive morphology Flowers Florets
Fertile florets female. Fertile lemma elliptic; membranous; without keel; 3 -veined. Lemma surface plumose. Lemma margins involute. Lemma apex caudate. Palea 0.25 length of lemma; 2 -veined.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 2. Stigmas 2.
sex Male
Male inflorescence similar to female; a panicle. Male spikelets distinct from female. Male spikelet glumes 2.
Distribution
Africa, or North America, or South America.

Native to:

Argentina Northeast, Argentina Northwest, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Suriname, Trinidad-Tobago, Venezuela, Venezuelan Antilles, Windward Is.

Introduced into:

Galápagos, Ghana

Gynerium Willd. ex P.Beauv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
s.coll. [P6-301b], Peru K000743056 No

First published in Ess. Agrostogr.: 138 (1812)

Accepted by

  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

  • GrassBase - The Online World Grass Flora

    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

  • 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