G.561. Tristachya Nees

DOLICHOCHAETE (C.E. Hubb.) J.B. Phipps

Description of the genus

Annuals or perennials. Ligule a line of hairs. Inflorescence an open or contracted panicle; spikelets mostly borne in triads with connate pedicels, less often in groups of 2-3 on long unequal free pedicels. Spikelets large, brown, 2-flowered, the lower floret male or barren. Lower lemma 5-7-nerved. Callus of upper floret pungent, conical. Upper lemma usually pubescent, rarely with hair-tufts, 2-lobed, geniculately awned.

Worldwide: 22 species in tropical and South Africa, Madagascar and tropical America

Zambia: 11 taxa.

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Links to taxa:     View: living plant images - herbarium specimen images - all images for this genus

SpeciesFZ divisionsContent
bequaertii De Wild.
bicrinita (J.B. Phipps) Clayton
hubbardiana Conert
huillensis Rendle N,W,C
leucothrix NeesB,N,W,SDescription
lualabaensis (De Wild.) J.B. PhippsB,N,SDescription
nodiglumis K. Schum.B,N,W,C,E,SDescription, Image
rehmannii Hack.N,W,C,E,SDescription
superba (De Not.) Schweinf. & Asch.N,W,C,SDescription
thollonii Franch.N,W,C
viridiaristata (J.B. Phipps) Clayton

Other sources of information about Tristachya:

Our websites:

Flora of Botswana: Tristachya
Flora of Burundi: Tristachya
Flora of Caprivi: Tristachya
Flora of Malawi: Tristachya
Flora of Mozambique: Tristachya
Flora of Zimbabwe: Tristachya

External websites:

African Plants: A Photo Guide (Senckenberg): Tristachya
BHL (Biodiversity Heritage Library): Tristachya
EOL (Encyclopedia of Life): Tristachya
GBIF (Global Biodiversity Information Facility): Tristachya
Google: Web - Images - Scholar
iNaturalist: Tristachya
IPNI (International Plant Names Index): Tristachya
JSTOR Plant Science: Tristachya
Mansfeld World Database of Agricultural and Horticultural Crops: Tristachya
Plants of the World Online: Tristachya
Tropicos: Tristachya
Wikipedia: Tristachya

Copyright: Mike Bingham, Annette Willemen, Nicholas Wightman, Bart Wursten, Petra Ballings and Mark Hyde, 2011-25

Bingham, M.G., Willemen, A., Wightman, N., Wursten, B.T., Ballings, P. and Hyde, M.A. (2025). Flora of Zambia: Genus page: Tristachya.
https://www.zambiaflora.com/speciesdata/genus.php?genus_id=218, retrieved 2 April 2025

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