Parastichy Explained

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]

See also

• Embryology
  • Gerrit van Iterson
  • Phyllotaxis

External links

• Smith College, Spiral Lattices & Parastichy
• Interactive Parastichies Explorer

Notes and References

1. Book: Webster's Revised Unabridged Dictionary. C. & G. Merriam Co.. 1913.
2. Web site: Principle of Minimax and Rise Phyllotaxis. Weise. Dmitriy. 1998-10-29. 2008-12-14.