Dactyloctenium geminatum Hack.

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Synonyms: Dactyloctenium australe sensu B.K. Simon
Dactyloctenium glaucophyllum var. somalicum Chiov.
Dactyloctenium mucronatum var. angustius Andersson
Common names:
Frequency:
Status: Native
Description:
Tough, mat-forming perennial with wiry stolons; culms up to 120 cm tall, slender, ascending; leaf laminas 4–25 cm × 3–6 mm, flat, ± glabrous.Racemes (1)2–3, 3–7 cm long, diverging and often somewhat falcate.Spikelets 3–5.3 mm long, narrowly ovate, 3–6-flowered; glumes subequal, 1.3–1.8 mm long, the inferior broadly elliptic to ovate in profile, the superior broadly elliptic to narrowly obovate in profile, the smooth keel extended into a stout awn up to 1.5(2) times as long as the body; lemmas 3–3.8 mm long, lanceolate in profile, the keel smooth or only faintly scaberulous towards the apex, acute and mucronulate at the apex in the lower lemmas; palea keels wingless; anthers 1.1–1.7 mm long.Caryopsis c. 1 mm long, transversely rugose.
Notes:
Derivation of specific name:
Habitat: Locally common mat-forming grass on littoral dunes, in sand on mangrove margins and in saline sandy clays on the coastal plain; also in seasonal swampy floodplain grassland and sandy river banks at low altitudes
Altitude range: (metres) 0 - 300 m
Flowering time:
Worldwide distribution: African east coast from Somalia to South Africa, Botswana, Malawi, Mozambique, Zimbabwe
Zimbabwe distribution: S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Cope, T.A. (1999). Poaceae Flora Zambesiaca 10(2) Pages 164 - 166. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 102.

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 134.


Other sources of information about Dactyloctenium geminatum:

Our websites:

Flora of Botswana: Dactyloctenium geminatum
Flora of Malawi: Dactyloctenium geminatum
Flora of Mozambique: Dactyloctenium geminatum

External websites:

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


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: Species information: Dactyloctenium geminatum.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=105370, retrieved 8 December 2024

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