In botany, phyllotaxis is the arrangement of the leaves on the shoot of a plant. This can be alternate, opposite, whorled or in a spiral. In many cases, such as the celebrated case of the sunflower head, phyllotactic patterns involve the golden angle. Also, the number of spirals in a phyllotactic arrangement tend to be Fibonacci numbers. Botany is the scientific study of plant life. ...
In botany, a leaf is an aboveground plant organ specialized for photosynthesis. ...
A shoot is the fresh young growth of a plant stem. ...
Divisions Green algae Land plants (embryophytes) Nonvascular plants (bryophytes) Hepatophyta  liverworts Anthocerophyta  hornworts Bryophyta  mosses Vascular plants (tracheophytes) Lycopodiophyta  clubmosses Equisetophyta  horsetails Pteridophyta  true ferns Psilotophyta  whisk ferns Ophioglossophyta  adderstongues Seed plants (spermatophytes) â€ Pteridospermatophyta  seed ferns Pinophyta  conifers Cycadophyta  cycads Ginkgophyta  ginkgo Gnetophyta  gnetae Magnoliophyta  flowering plants Adiantum pedatum...
Binomial name Helianthus annuus The sunflower (Helianthus annuus) is an annual plant in the Family Asteraceae with a large flower head (inflorescence). ...
In geometry, the golden angle is the angle created by dividing the circumference c of a circle into a section a and a smaller section b such that and and taking the angle of arc subtended by the length of circumference equal to b as the golden angle. ...
In mathematics, the Fibonacci numbers form a sequence defined recursively by: In words: you start with 0 and 1, and then produce the next Fibonacci number by adding the two previous Fibonacci numbers. ...
