Eragrostis welwitschii Rendle

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Synonyms: Eragrostis densa De Wild.
Common names:
Frequency:
Status: Native
Description:
Caespitose annual; culms up to 60 cm tall, erect or ascending, branched or unbranched, glabrous at the nodes, eglandular; leaf sheaths glabrous, eglandular; ligule a line of hairs; leaf laminas 2–10 cm × 1.5–3 mm, linear, usually involute, sometimes flat, glabrous, eglandular.Panicle 2.5–16 cm long, ovate or oblong-ovate, moderately dense, the spikelets evenly distributed on pedicels 2–3.5 mm long, the primary branches not in whorls, terminating in a fertile spikelet, thinly pilose in the axils, eglandular.Spikelets 3.5–9 × 1.5–2 mm, oblong, laterally compressed, 6–30-flowered, the lemmas disarticulating from below upwards, the rhachilla persistent; glumes unequal, keeled, narrowly lanceolate in profile, glabrous, eglandular, acute at the apex, the inferior 1–1.3 mm long, reaching to 2/3 the way along the adjacent lemma, the superior 1.4–1.6 mm long, reaching to the middle of the adjacent lemma; lemmas 1.5–1.8 mm long, keeled, narrowly ovate in profile, chartaceous with distinct lateral nerves, diverging from the rhachilla at 45°, those in opposite rows not overlapping, the rhachilla visible between them, light green tinged with dark purple, glabrous, eglandular, acute at the apex; palea persistent or tardily deciduous, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers (2)3, c. 0.3 mm long.Caryopsis 0.3–0.5 mm long, subrotund.
Notes:
Derivation of specific name: welwitschii: named after the Austrian botanist, Friedrich Martin Welwitsch (1806-1872)
Habitat: Dambo grasslands, miombo woodland and riverine vegetation, sometimes on rocky outcrops; also in disturbed ground at roadsides
Altitude range: (metres) 910 - 1770 m
Flowering time:
Worldwide distribution: Tropical Africa
Zimbabwe distribution: N,W,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) Page 140.

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 104.

Poilecot, P. (2007). Eragrostis species of Zimbabwe Éditions Quae,Versailles, France Pages 194 - 195. (Includes a picture).


Other sources of information about Eragrostis welwitschii:

Our websites:

Flora of Malawi: Eragrostis welwitschii
Flora of Mozambique: Eragrostis welwitschii
Flora of Zambia: Eragrostis welwitschii

External websites:

African Plants: A Photo Guide (Senckenberg): Eragrostis welwitschii
African Plant Database: Eragrostis welwitschii
BHL (Biodiversity Heritage Library): Eragrostis welwitschii
EOL (Encyclopedia of Life): Eragrostis welwitschii
ePIC (electronic Plant Information Center): Eragrostis welwitschii
Flora Zambesiaca web site: Eragrostis welwitschii
GBIF (Global Biodiversity Information Facility): Eragrostis welwitschii
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Eragrostis welwitschii
iNaturalist: Eragrostis welwitschii
IPNI (International Plant Names Index): Eragrostis welwitschii
JSTOR Plant Science: Eragrostis welwitschii
Kew Herbarium catalogue: Eragrostis welwitschii
Kew Monocotyledon checklist: Eragrostis welwitschii
Mansfeld World Database of Agricultural and Horticultural Crops: Eragrostis welwitschii
Plants of the World Online: Eragrostis welwitschii
Tropicos: Eragrostis welwitschii
Wikipedia: Eragrostis welwitschii


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-21

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2021). Flora of Zimbabwe: Species information: Eragrostis welwitschii.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=105300, retrieved 19 September 2021

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