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parastichy

[ pi-ras-ti-kee ]
/ pɪˈræs tɪ ki /
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noun, plural pa·ras·ti·chies.Botany.
one of a number of seemingly secondary spirals or oblique ranks winding around the stem or axis to the right and left in a spiral arrangement of leaves, scales, etc., where the internodes are short and the members closely crowded, as in the houseleek and the pine cone.
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Origin of parastichy

First recorded in 1870–75; para-1 + stich1 + -y3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for parastichy

parastichy
/ (pəˈræstɪkɪ) /

noun plural -chies
a hypothetical spiral line connecting the bases of a series of leaves on a stem
an arrangement of leaves so connected
Compare orthostichy

Derived forms of parastichy

parastichous, adjective

Word Origin for parastichy

C19: from para- 1 + Greek stikhia, from stikhos row, rank
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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