Parastichy, in phyllotaxy, is the spiral pattern of particular plant organs on some plants, such as areoles on cacti stems, florets in sunflower heads and scales in pine cones.[1] These spirals involve the insertion of a single primordium.[2]
![](http://178.128.105.246/cars-http-upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Aeonium_tabuliforme.jpg/170px-Aeonium_tabuliforme.jpg)
See also
editReferences
edit- ^ Webster's Revised Unabridged Dictionary. C. & G. Merriam Co. 1913.
- ^ Weise, Dmitriy (1998-10-29). "Principle of Minimax and Rise Phyllotaxis". Retrieved 2008-12-14.
External links
edit- Smith College, Spiral Lattices & Parastichy
- Interactive Parastichies Explorer