Daily Telegraph Monday 15/01/07 GK Crossword 17across?
Re 17a clue �Alternative spelling for North African esparto -
Definitions from Answers.com
es�par�to (ĭ-sp�r'tō)
n., pl. -tos.
A tough, wiry grass (Stipa tenacissima) of northern Africa, yielding a fiber used in making paper and as cordage.
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Either of two species of gray-green needlegrasses (Stipa tenacissima and Lygeum spartum), native to southern Spain and northern Africa, or the fibre produced by esparto.
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Esparto, or esparto grass, also known as "halfah grass" or "needle grass", Stipa tenacissima, is a perennial grass grown in northwest Africa and southern Spain for fiber production for paper making.
Al�fa
or Al�fa grass n.
A plant (Macrochloa tenacissima) of North Africa; also, its fiber, used in paper making.
The above is therefore saying that -
esparto = Stipa tenacissima or Lygeum spartum
alfa grass = Macrochloa tenacissima
What does Chambers say?