a cylinder formed in some flowers by the fusion of the perianth and stamens, as in the daffodil or iris.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A tube formed by the fusion of parts of the perianth and often the stamens at their bases, as in flowers of the daffodil or morning glory.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.