sepals
The small green 'leaves' are not leaves but the sepals that photosynthesize to provide food to the flower. They also act as a support to the flower.
image flowers
Berberis darwinii
That is the correct spelling of "clover", a plant known for its small flowers and trefoil leaves.
An andromeda is a shrub of the genus Pieris with small leathery leaves and small flowers. Alternatively, it is another name for bog rosemary.
An aspidistra is any of a variety of Asian flowers of the genus Aspidistra, with large leaves and small bell-shaped flowers, widely cultivated as a houseplant.
flowers an leaves
You may be asking about the forsythia bush. It has small, bright yellow flowers covering the branches even before the leaves have leafed out. When pruning, last year's woody stems are removed near the base of the bush, leaving new growth to produce flowers and leaves.
A Cactus - it has a modified stem which produces flowers, but no leaves.
Waxy looking leaves on upright stems with clusters of small five petaled flowers.
a garland is a parasitic plant having evergreen leaves and bearing white berries and small, yellow flowers .