Eragrostis pilosa (L.) P. Beauv.

Images: None on this site.

Detailed records: Display species records QDS maps by: Google Maps Point records by Google Maps

Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms:
Eragrostis aethiopica sensu Simon, non Chiov.
Eragrostis micrantha auct. non Hack.
Poa pilosa L.
Common names:
Frequency:
Status: Native
Description:
Loosely caespitose annual, culms up to 70 cm tall, erect or ascending, branched or unbranched, glabrous at the nodes, glandular or eglandular; leaf sheaths glabrous; ligule a line of hairs; leaf laminas 2–20 cm × 1–4 mm, linear, flat, glabrous, eglandular.Panicle 4–25 cm long, elliptic or ovate, open, the spikelets evenly distributed on pedicels 2–6 mm long, the lowermost primary branches in a whorl (except in smaller specimens), the remainder not so, terminating in a fertile spikelet, thinly long-pilose in the axils (especially, and sometimes only, in the whorled branches), eglandular or sometimes with scattered crateriform glands.Spikelets 3–7 × 0.7–1.2 mm, linear, lightly laterally compressed, 4–14-flowered, the florets disarticulating from below upwards, the rhachilla persistent; glumes very unequal, the inferior 0.5–0.7 mm long, reaching to c. 1/5 the way along the adjacent lemma, keeled, lanceolate in profile, glabrous, obtuse at the apex; the superior 0.7–1 mm long, reaching to c. 1/4 the way along the adjacent lemma, keeled, narrowly ovate in profile, glabrous, subacute at the apex; lemmas 1–1.6(1.8) mm long, keeled, narrowly ovate in profile, thinly membranous with distinct lateral nerves, appressed to the rhachilla but those in opposite rows scarcely imbricate and the rhachilla ± visible between them, purplish-green, glabrous, subacute to obtuse at the apex; palea deciduous soon after the lemma, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers 3, 0.2–0.3 mm long.Caryopsis 0.6–1 mm long, elliptic but with one side straight, somewhat laterally compressed.
Notes:
Derivation of specific name: pilosa: pilose, with long soft hairs
Habitat: Widespread in hot, low to medium altitudes, in dambo and floodplain grassland, on river sand banks and alluvium and in black basaltic soil, in mopane woodland on clayey soils and in sandveld; also commonly as a weed of cultivated and disturbed places
Flowering time:
Worldwide distribution: Tropical and warm temperate regions of the Old World, introduced in the New World
Botswana distribution: N,SE
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 108 - 109.

Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 473. (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 104.

Poilecot, P. (2007). Eragrostis species of Zimbabwe Éditions Quae,Versailles, France Pages 126 - 127. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 137.

Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 189.

Other sources of information about Eragrostis pilosa:

Our websites:

Flora of Caprivi: Eragrostis pilosa
Flora of Malawi: Eragrostis pilosa
Flora of Mozambique: Eragrostis pilosa
Flora of Zambia: Eragrostis pilosa
Flora of Zimbabwe: Eragrostis pilosa

External websites:

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


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-21

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2021). Flora of Botswana: Species information: Eragrostis pilosa.
https://www.botswanaflora.com/speciesdata/species.php?species_id=105090, retrieved 15 June 2021

Site software last modified: 2 April 2018 9:51pm
Terms of use