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The beautiful geometry of this tree at the Royal Botanic Garden in Sydney (Australia).
A nearly-regular pentagon in yellow at the centre of this flower of white cistus.
Leaves of black Carpinus (Ostrya carpinifolia), a xxx that can be found in xxx. The leaf, ...
A compound leaf of Robinia (Robinia pseudoacacia). A photo of the leaf of Robinia pseudoac...
An elm-tree leaf (Ulmus sp.), this plant is easy to recognize thanks to the characteristic...
What have in common these flowers and their shadows?
A flower of Plumeria acuminata, an ornamental succulent plant. The photo shows a rough cyc...
Flower of succulent plant. The various trunks has a photosynthetic function and have thorn...
A hint of frieze with glide reflection symmetry in the structure of the inflorescence of t...