Tefheinä – Eragrostis tef

Culms erect, 17–90 cm tall. Leaves 10–30 cm long, 2–4 mm wide, drooping. Leaf sheaths glabrous. Ligule is a fringe of hairs, 0.5–0.8 mm long. Inflorescence is a 10–40 cm long compound panicle with long branches. Primary panicle branches are whorled at lower nodes. Spikelets are solitary, lanceolate or oblong, laterally compressed, 5.5–9× 1.5–2 mm. Fertile spikelets are many flowered, comprising 4–15 fertile florets, with diminished florets at the apex. Caryopsis (grain) 1–1.2 mm long, oblong, white or reddish-brown, usually retained on the mature panicle.

Teff is daylight-sensitive and flowers best with 12 hours of daylight.