Sentence:  The East India <WSD>arrowroot</WSD> was considered the best; and the French West India <WSD>arrowroot</WSD> not so good. The East India <WSD>arrowroot</WSD> had the finest grains; the second finest were those from the potato; and third the "tous les mois" or French West India <WSD>arrowroot</WSD>; ... 
Meaning of the word marked with <WSD> tags:  "Maranta arundinacea" from the Marantaceae family, a large perennial herb native to the Caribbean area with green leaves about 15 centimeters long with white stripes. (from late 17th c.)