| alder |
a tree or shrub of the birch family that grows in mostly cool, damp areas and drops its leaves every year. |
| alga |
"Alga" is the singular form of the word "algae." Algae are living things that live mainly in water and make their food by using light from the sun. Algae are similar to plants, but they are not usually considered to be plants because they are different in some ways. For example, algae don't have roots and leaves like plants do. Most forms of algae are very helpful for animals and people. Seaweed is a kind of algae, which many people eat and can also be used in making other things. Fish and other water animals use algae for food. |
| algae |
organisms that live mainly in the water and make their food through photosynthesis. Algae are different from plants in that they have no true leaves, roots, or stems. Seaweeds are one form of algae, but there are many others, including a large number that cannot be seen without a microscope. "Algae" is the plural form of the word "alga." |
| artichoke |
a plant like a tall thistle with a flower head made up of thick leaves. The head of the artichoke is eaten as a vegetable. |
| ash2 |
a tree that is related to the olive tree. It has seeds that look like wings and leaves of more than one part. [1/2 definitions] |
| asparagus |
a plant related to the lily, whose young shoots are cooked and eaten as a vegetable. The shoots are shaped like spears with scaly leaves at the tip. |
| aspen |
a kind of poplar tree with leaves that shake in the slightest breeze. |
| azalea |
a shrub with dark green leaves and brightly colored flowers. |
| beet |
a plant whose leaves and fleshy dark red root can be eaten. |
| begonia |
a tropical plant with bright flowers in many colors. The leaves are often streaked or spotted. |
| birch |
A birch is a kind of tree with smooth bark that is often white or gray. Birches lose their leaves in the fall and grow new leaves in the spring. The wood from birch trees is sometimes used to make furniture. |
| bruise |
A bruise is an injury that does not break the skin but leaves a dark blue or purple mark on it. [1/2 definitions] |
| bud1 |
a swelling on a plant that can grow into new parts, such as leaves or a flower. [1/4 definitions] |
| butternut |
a tree of North America with leaves that drop every year. The butternut is related to the walnut. [1/2 definitions] |
| cabbage |
a vegetable with large green or purple leaves that form a round head. |
| cactus |
a thick-stemmed, often prickly plant without conventional leaves that grows in hot, dry areas of America. |
| canopy |
something high in the air or sky that is spread out over the earth. The top layer of branches and leaves in a rainforest, for example, is called a canopy. [1/2 definitions] |
| carbon |
When wood or paper is burned with little or no air around it, it sometimes leaves behind a black substance. This substance is called carbon. [1/2 definitions] |
| cattail |
a tall plant with long, flat leaves that grows in wet places. Cattails have long, brown, fuzzy flower spikes. |
| celery |
a plant with crisp, pale green stalks that are eaten as a vegetable. Celery leaves and seeds are used as seasoning. |
| chlorophyll |
the green matter in the leaves and stems of plants that is necessary to produce food for plants from sunlight. |