n.

axis of a compound leaf or compound inflorescence

the series of vertebrae forming the axis of the skeleton and protecting the spinal cord

同義詞：spinal columnvertebral columnspinebackboneback

Studies on the rachises of the Egyptian date palm leaves for hardboard production
Narrow primary feather rachises in Confuciusornis and Archaeopteryx suggest poor flight ability.
Anatomically Preserved Pteridosperm Stems and Rachises from Permian Floras of China
Nanomechanical properties of bird feather rachises: exploring naturally occurring fibre reinforced laminar composites.
Induction, Culture and Differentiation of Callus from Immature Rachises, Seeds and Embryos of Triticum
Seasonal development of ontogenic resistance to downy mildew in grape berries and rachises.
Genetic Variability of Hymenoscyphus pseudoalbidus on Ash Leaf Rachises in Leaf Litter of Forest Stands in Poland
Flexural Stiffness Allometries of Angiosperm and Fern Petioles and Rachises: Evidence for Biomechanical Convergence
Testing 'Economy in Design' in Plants: are the Petioles and Rachises of Leaves 'Designed' According to the Principle of Uniform Stre...
Ascocarp formation of Hymenoscyphus fraxineus on several‐year‐old pseudosclerotial leaf rachises of Fraxinus excelsior