Parastichy

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Template:Short description

File:Pflanze-Sonnenblume1-Asio.JPG
Spirals on a sunflower
File:Aeonium tabuliforme.jpg
Detail of Aeonium tabuliforme showing the multiple spiral arrangement (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.[1] These spirals involve the insertion of a single primordium.[2]

See also

References

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External links

Template:Patterns in nature


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