These central uplands of Tunisia in an uncultivated state are covered with alfa or esparto grass; but they also grow considerable amounts of cereals - wheat in the north, barley in the south.
The alfa and cork industries employ large numbers of persons, as do also the sardine, anchovy and tunny fisheries.
It is indigenous to the south of Spain and the north of Africa (where it is known as Halfa or Alfa), and is especially abundant in the sterile and rugged parts of Murcia and Valencia, and in Algeria, flourishing best in sandy, ferruginous soils, in dry, sunny situations on the sea coast.
The flora of the high plateaus consists chiefly of grasses, notably various kinds of alfa or esparto, and aromatic herbs.
In the Sud Oranais an insurrection, fomented by a marabout named Bu-Amama, broke out in 1881, and the insurgents massacred the European labourers engaged in the collection of alfa (or esparto) grass.
Sidi-bel-Abbes is also an important agricultural centre, wheat, tobacco and alfa being the chief articles of trade.
'147dlf 30VNlV1 1 0 JO 3/10V 1 1 3d Alfa d3d SN077V9 NI S/0Ad3S3d JO 073/h of cumulative flow (f and c respectively, in the one year diagram) which does not increase the aggregate cumulative supply between those points, or cause the line of cumulative supply from the reservoir to cut the line of cumulative flow into it.
Of the grasses of Africa alfa is very abundant in the plateaus of the Atlas range.