sugar cane

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several tall often hybrid grasses of the Asian genus Saccharum, widely cultivated in tropical and subtropical regions for their thick, solid, tough stems, which are the chief commercial source of sugar.

from The Century Dictionary.

• noun A saccharine grass, Saccharum officinarum, the original source of manufactured sugar, and still the source of most of the supply.
• noun In recent years sugar-cane has frequently been grown from seed and the seedlings, which present great variation, have been utilized for selection, but not for cropping.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A tropical grass of the genus Saccharum (especially the species Saccharum officinarum) having stout, fibrous, jointed stalks, the sap of which is a source of sugar.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun tall tropical southeast Asian grass having stout fibrous jointed stalks; sap is a chief source of sugar
• noun juicy canes whose sap is a source of molasses and commercial sugar; fresh canes are sometimes chewed for the juice
• noun tall tropical southeast Asian grass having stout fibrous jointed stalks; sap is a chief source of sugar
• noun juicy canes whose sap is a source of molasses and commercial sugar; fresh canes are sometimes chewed for the juice