| Home | > | List of families | > | Poaceae | > | Eragrostis | > | tef |
| Synonyms: |
Eragrostis abyssinica (Jacq.) Link Eragrostis pilosa var. abyssinica (Jacq.) Asch. & P. Graebn. Eragrostis pilosa var. tef (Zuccagni) Fiori Poa abyssinica Jacq. Poa tef Zuccagni |
| Common names: | |
| Frequency: | |
| Status: | Native |
| Description: |
Loosely caespitose annual; culms up to 90 cm tall, usually erect, branched or unbranched, glabrous at the nodes, eglandular; leaf sheaths glabrous; ligule a line of hairs; leaf laminas 6–30 cm × 2–4 mm, linear, flat or involute, glabrous, eglandular.Panicle 10–40 cm long, lanceolate to broadly ovate, diffuse or contracted, the spikelets evenly distributed on slender flexuous pedicels 4–9 mm long, the lowermost primary branches in a whorl, the remainder not so, terminating in a fertile spikelet, glabrous or thinly long-pilose in the axils, slender and flexuous, eglandular.Spikelets 5.5–9 × 1.5–2 mm, narrowly oblong, lightly laterally compressed, 4–12-flowered, the florets remaining intact for some time on the persistent rhachilla, very tardily deciduous; glumes unequal, reaching to about the middle of the adjacent lemmas, keeled, lanceolate in profile, glabrous, subacute to acute or acuminate at the apex, the inferior 1.2–2.5 mm long, the superior 1.7–3 mm long; lemmas 2–2.7 mm long, keeled, oblong-elliptic to oblong-ovate in profile, thinly membranous with distinct lateral nerves, at first appressed to the rhachilla and those in opposite rows with overlapping margins concealing the rhachilla, later diverging and exposing the rhachilla as the caryopsis swells, straw-coloured to dark green or reddish, glabrous, subacute to acute at the apex; palea very tardily deciduous with the lemma, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers 3, 0.3–0.6 mm long.Caryopsis 1–1.2 mm long, oblong, turgid, white or reddish-brown, usually retained on the mature panicle. |
| Notes: | |
| Derivation of specific name: | |
| Habitat: | Dry grassland on sandy loams; also in disturbed ground at roadsides and along railway lines |
| Flowering time: | |
| Worldwide distribution: | Native to Ethiopia where it is a staple cereal crop; it has been introduced experimentally to other tropical countries, either for its grain or for hay, and is often found as an escape. Botswana, Malawi, Mozambique, Zambia, Zimbabwe |
| Botswana distribution: | SE |
| Growth form(s): | |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | Mentaxya ignicollis (Larval foodplant) |
| Spot characters: | Display spot characters for this species |
| Literature: |
Cope, T.A. (1999). Poaceae Flora Zambesiaca 10(2) Pages 106 - 107. Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 67. As Eragrostis abyssinica 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 122 - 123. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 137. |
| Home | > | List of families | > | Poaceae | > | Eragrostis | > | tef |