Leaf
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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
Flower
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Flowers, also known as blossoms and blooms, are the reproductive structures of flowering plants. Typically, they are structured in four circular levels around the end of a stalk. These include: sepals
Leaf
…borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper…
A dandelion inflorescence is made up of many small flowers grouped closely together to look like a single flower (a pseudanthium).
Floral diagram and formula for a Convolvulus
Diagram showing the floral organs within a developing rose flower, or rose bud
A hoverfly pollinating Oxalis pes-caprae