noun, plural phyl·lo·tax·es [fil-uh-tak-seez] /ˌfɪl əˈtæk siz/. Botany.
Examples from the Web for phyllotaxis
In different species of the same genus the phyllotaxis frequently varies.
The former condition represents a lower, the latter condition represents a higher, order of phyllotaxis.
Phyllotaxis, or Phyllotaxy, the arrangement of leaves on the stem, 67.The Elements of Botany|Asa Gray
The angle of divergence may alter either abruptly or gradually, and the phyllotaxis thus becomes very complicated.
Such are the majority of the scales of the cone and represent more or less indefinite conditions of phyllotaxis.