Definition of "echinate" []

• Bearing or covered with spines or bristles; prickly. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Spikelets fascicled unilaterally on a broad rachis, 4-glumed, glumes not echinate 13."
• "Spikelets binate and all round the rachis, 3-glumed, glumes echinate 14."
• "The _spikelets_ are arranged in groups of two, facing each other and appearing like a single spikelet with two equal echinate glumes, sessile, or obscurely pedicelled on very short, tumid, pubescent branches."