You're probably thinking of 'lichen' (pronounced 'liken'. The plant is extremely slow-growing, and may only grow a millimetre in ten years.
Small, strong plants such as lichens and mosses can grow there.
The lemon, Citrus limon Osbeck, grows on a small evergreen tree.
A plant which is a small spiny shrub of the pea family which grows in hot, dry climates in America.
There are many flowers that are made of small clusters of flowers such as Baby's breath, forsythia, goldenrod, and others.
Guava grows up to be a small tree. The habitat is the tropic.
cotton grows in a field and it kind of looks like cotton candy
The Waterberry is a member of the lonicera family. It produces small blue edible berries and grows in the northeast of North America
C. yanhusuo is a small plant that grows to 8 in (20 cm) has narrow leaves and pink flowers.
Teaberry is a small low growing plant with a small pinkish reddish berry. It grows in the woods in North American and the leaves also have a nice fragrance to them.
The flax plant is a small, single-stemmed annual that grows to about 2 ft (0.6 m) tall and has grayish green leaves and sky-blue flowers.
The pumpkin plant grows thin hairs along the stems. These prevent some insects from getting into the stems and can be annoying to small birds and animals.
The Jambu is considered to be a large shrub or a small tree. The Jambu grows in eastern Malaya and India. The animals that eat the jambu plant are monkeys and jambu fruit doves.