• Source: Parastichy

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. These spirals involve the insertion of a single primordium.




See also


Embryology
Fibonacci number § Nature
Gerrit van Iterson
Golden ratio § Nature
Phyllotaxis




References






External links


Smith College, Spiral Lattices & Parastichy
Interactive Parastichies Explorer

Kata Kunci Pencarian:

• Filotaksis
• Parastichy
• Phyllotaxis
• Golden ratio
• Fibonacci sequence
• Common sunflower
• Conifer cone
• Golden angle
• Patterns in nature
• Plastochron
• Doyle spiral