Eragrostis crassinervis Hack.

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Synonyms: Eragrostis poecilantha Stapf
Common names:
Densely caespitose perennial without stolons but sometimes with short oblique rhizome; culms up to 60 cm tall, erect or ascending, unbranched or rarely branched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, compressed and keeled, gland-dotted on the nerves, persistent; ligule a line of hairs; leaf laminas 3.5–8(10) cm × 1.5–2 mm, narrowly linear, involute or rarely flat, villous above, gland-dotted on the midnerve beneath.Panicle 4–10(12) cm long, oblong to narrowly elliptic, gland-dotted on the axis, branches and pedicels, the spikelets condensed about the branches and branchlets on pedicels up to 0.7 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils.Spikelets 5–12(15) × 2–3 mm, narrowly oblong, laterally compressed, 12–20-flowered, the lemmas disarticulating from below upwards, the rhachilla persistent; glumes subequal, 1.3–1.9 mm long, reaching to between 2/3 and 4/5 the way along the adjacent lemmas, keeled, narrowly oblong-lanceolate in profile, gland-dotted on the keel, acute at the apex; lemmas 1.4–1.8 mm long, keeled, elliptic in profile, membranous with raised prominent lateral nerves, diverging from the rhachilla at c. 45°, those in opposite rows not imbricate, the rhachilla visible between them, often tinged with purple, gland-dotted on the keel, scaberulous on the back above, obtuse at the apex with the nerves excurrent as short mucros; palea persistent, glabrous on the flanks, the keels slender, wingless, scabrid; anthers 3, 0.5–0.6 mm long.Caryopsis 0.4–0.5 mm long, subrotund.
Derivation of specific name: crassinervis: with thick nerves
Habitat: Moist sand in bed of seasonal rivers, beside waterholes and springs, and in moist clayey soil of pans
Altitude range: (metres) 600 - 1400 m
Flowering time:
Worldwide distribution: Namibia, South Africa, Zimbabwe
Zimbabwe distribution: W,C,E,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species

Cope, T.A. (1999). Poaceae Flora Zambesiaca 10(2) Page 143.

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 103.

Poilecot, P. (2007). Eragrostis species of Zimbabwe Éditions Quae,Versailles, France Pages 200 - 201. (Includes a picture).

Other sources of information about Eragrostis crassinervis:

External websites:

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

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: Eragrostis crassinervis., retrieved 13 April 2024

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