Perhaps you're thinking of a Gardenia? They have very fragrant white blooms. I've never seen one with yellow blooms though.
Jasmine
Clematis has several white flowers that are fragrant. Sweet autumn clementine is great in the fall.
Jasmine
A peony is a flowering plant of the genus Paeonia with large fragrant flowers.
A peony is a spring blooming perennial plant. It comes in many colors but not blue. It is one of the most fragrant flowers.
fragrance This is probably Frangipani (Plumeria rubra)
chimonanthus Praecox
On the second page beside the large glass vase of yellow flowers, in the small pot of purple flowers
the color Yellow, taken from the kowhai or kowhaiwhai tree, which is a native NZ medium to large shrub with yellow flowers
Sunflowers can have very large flowers. Dahlias can have flowers the size of dinner plates. Peonies also have large flowers.
The white water lily is a perennial plant that often form dense colonies. The leaves arise on flexible stalks from large thick rhizomes. The leaves are more round than heart-shaped, bright green, 6 to 12 inches in diameter with the slit about 1/3 the length of the leaf. Leaves usually float on the water's surface. Flowers arise on separate stalks, have brilliant white petals (25 or more per flower) with yellow centers. The flowers may float or stick above the water and each opens in the morning and closes in the afternoon. The flowers aThe white water lily is a perennial plant that often form dense colonies. The leaves arise on flexible stalks from large thick rhizomes. The leaves are more round than heart-shaped, bright green, 6 to 12 inches in diameter with the slit about 1/3 the length of the leaf. Leaves usually float on the water's surface. Flowers arise on separate stalks, have brilliant white petals (25 or more per flower) with yellow centers. The flowers may float or stick above the water and each opens in the morning and closes in the afternoon. The flowers are very fragrant. White water lily can spread from seeds or the rhizomes.re very fragrant. White water lily can spread from seeds or the rhizomes.
This would be a cucumber vine. It will also have leaves that look similar to a spade from a deck of cards