Leaf
Videos
A leaf is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage"
Leaf of Tilia tomentosa (silver linden tree)
Vein skeleton of a leaf. Veins contain lignin that make them harder to degrade for microorganisms.
Near the ground these Eucalyptus saplings have juvenile dorsiventral foliage from the previous year, but this season their newly sprouting foliage is isobilateral, like the mature foliage on the adult trees above.
Rosa canina: Petiole, two stipules, rachis, five leaflets
Plant cuticle
Videos
A plant cuticle is a protecting film covering the outermost skin layer of leaves, young shoots and other aerial plant organs that have no periderm. The film consists of lipid and hydrocarbon polymers
Water beads on the waxy cuticle of kale leaves