G.597. Ischaemum L.

Description of the genus

Annuals or (in ours) perennials. Inflorescence terminal or axillary, of paired (occasionally single or digitate) racemes; racemes interlocked back to back, thereby simulating a single raceme, lacking homogamous pairs and usually exserted, but sometimes enclosed within, a spatheole; internodes and pedicels clavate to inflated, usually exposed on the back of the raceme as a U- or V-shaped segment. Sessile spikelet dorsally flattened; callus obtuse, inserted in the concave top of the internode; lower glume chartaceous to coriaceous, convex (concave in I. afrum), 2-keeled or rounded on the back, entire or 2-lobed; upper glume with or without an awn; lower floret male; upper lemma 2-fid with a glabrous awn from the sinus.

Similar in appearance to Andropogon, Ischaemum may technically be separated by the male lower floret and the U-shaped appearance of the internode and pedicel.

Worldwide: c. 65 species in warm and tropical regions

Zimbabwe: 3 taxa.

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

SpeciesLinks to mapsFZ divisionsContent
afrum (J.F. Gmel.) DandyN,W,C,E,S
fasciculatum Brongn.N,W,C,E,S
roseotomentosum J.B. Phipps[End]W,E,S

Other sources of information about Ischaemum:

Our websites:

Flora of Mozambique: Ischaemum
Flora of Zambia: Ischaemum

External websites:

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

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: Ischaemum.
http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=237, retrieved 2 October 2014

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