unicostate

Related to unicostate: inflorescence, cymose, reticulate venation

u·ni·cos·tate

 (yo͞o′nĭ-kŏs′tāt′)
adj.
Having a single main costa, rib, or riblike part: a unicostate leaf.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

unicostate

(ˌjuːnɪˈkɒsteɪt)
adj
(Biology) biology having only one rib or riblike part: unicostate leaves.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In addition, Buck (1998) had previously suggested unicostate leaves as a distinctive feature of the genus.