G.612. Hyparrhenia Fourn. - Thatching-grasses

Clayton, W.D. (1969) A Revision of the Genus Hyparrhenia. Kew Bull. Addit. Ser. 2. Royal Botanic Gardens, Kew.

Description of the genus

Annuals or perennials. Leaves never aromatic. Inflorescence composed of paired racemes, each pair borne on a common peduncle and subtended by a sheathing spatheole, these crowded together into a large leafy false panicle.

Racemes borne on a stalk (raceme-base) which may be deflexed at maturity; each raceme with up to 2 of the lowermost pairs male or barren, awnless and tardily deciduous (homogamous pairs). Rhachis internodes and pedicels linear.

Sessile spikelet dorsally flattened or terete; callus obtuse to pungent, applied obliquely to the apex of the internode; lower glume coriaceous, broadly convex across the back; upper glume awnless; lower floret reduced to a hyaline lemma; upper lemma 2-dentate bearing an awn between the teeth. Pedicellate spikelet male or barren, usually a little longer than the sessile spikelet, awnless or with a minute arista from the lower glume.

Worldwide: c. 55 species, mainly African but with a few extending to other tropical or warm-temperate regions

Zimbabwe: 24 taxa.

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SpeciesLinks to mapsFZ divisionsContent
anamesa ClaytonN,W,C,E
bracteata (Humb. & Bonpl. ex Willd.) StapfN,C,E,S
collina (Pilg.) StapfN,W,C,E,S
cymbaria (L.) StapfN,W,C,E,S
dichroa (Steud.) StapfN,W,C,E,S
diplandra (Hack.) Stapf var. diplandra E
dregeana (Nees) StentC,E
familiaris (Steud.) StapfN
filipendula (Hochst.) StapfN,W,C,E,S
finitima (Hochst.) Andersson ex StapfN,C,E,S
gazensis (Rendle) StapfE,S
hirta (L.) StapfE
newtonii (Hack.) Stapf var. newtonii N,C,E
newtonii (Hack.) Stapf var. macra StapfN,C,E
nyassae (Rendle) StapfN,W,C,E,S
pilgeriana C.E. Hubb.C,E
poecilotricha (Hack.) StapfN,W,C,E
quarrei RobynsC
rudis StapfN,W,C
rufa (Nees) StapfN,W,C,E,S
schimperi (A. Rich.) StapfN,C,E,S
tamba (Hochst. ex Steud.) Andersson ex StapfN,C
variabilis StapfN,W,C,E,S
welwitschii (Rendle) StapfE

Other sources of information about Hyparrhenia:

Our websites:

Flora of Mozambique: Hyparrhenia
Flora of Zambia: Hyparrhenia

External websites:

ePIC (electronic Plant Information Center): Hyparrhenia
Flora Zambesiaca web site: Hyparrhenia
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Hyparrhenia
IPNI (International Plant Names Index): Hyparrhenia
Kew Herbarium catalogue: Hyparrhenia
Kew Monocotyledon checklist: Hyparrhenia

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-14

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2014). Flora of Zimbabwe: Genus page: Hyparrhenia.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=246, retrieved 30 October 2014

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