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[pi-ras-ti-kee] /pɪˈræs tɪ ki/

noun, plural parastichies. 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.
noun (pl) -chies
a hypothetical spiral line connecting the bases of a series of leaves on a stem
an arrangement of leaves so connected


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