Sepal: the outermost part of the flower that surrounds and protects the flower bud and extends outward from the base of a flower after it has opened. Petal: the outer parts of a flower, usually ...

IN my article on “Different Modes of Self-fertilisation where Visits of Insects are wanting” (NATURE, vol. x. p. 129), I gave a short account of the number of sepals, petals, and anthers in a ...

The sepals and petals are both sterile parts of a flower. The leaf-like sepals surround the flower, protecting it before it blooms. Petals are colorful and often patterned ...

A recent study investigated the role of the APETALA3–3 ortholog in shaping the diverse morphologies of petals in Delphinium anthriscifolium. This gene, previously known for its function in petal ...

Tulips are among the loveliest of our spring-blooming flowers. The flowers come in a wide variety of shapes and sizes and colours to suit all tastes. Taste is, of course, a very personal matter ...

When it comes to flower formation, the Leafy (LFY) protein is a veritable workhorse. Flowers are built from parts named sepals, petals, stamens, and carpels, which are arranged in whorls.

There's more to those sepals than just pretty colours – the hue of a hydrangea can tell you about the ground it's planted in.

Flowers grow stems, leaves and petals in a perfect pattern again and again. A new Cornell study shows that even in this precise, patterned formation in plants, gene activity inside individual ...