( Ecol). Applied to any of the dominant species associated with a given species in a plant Association . (b) Also applied loosely to all species, dominant or otherwise, associated with a given species in a crop ( Deprec.).
A plant that is known to grow with another plant. For example, Common Cattail often grows with Yellow Pond Lily, so the pond lily is associated with cattails. Sometimes associated plants compete with each other for resources (light, water, soil, space). Other times they protect each other, such as when trees block the wind from other trees or larger plants provide shade for smaller plants. Some plants even grow on top of each other, or climb up other plants.