Scientific name
Helianthus annuus
This sunflower species has rough, hairy stems, triangular-shaped leaves, and flower heads up to 6 inches wide. It can be between 2 and 10 feet tall.

Scientific name
Symphyotrichum oblongifolium
Also Known As
Aromatic American aster, Fall aster, Wild blue aster, Shale barren aster
Aromatic aster is a native perennial wildflower that grows from 1–3 feet tall. The aster’s rigid stems branch out from the base.  The name derives from the balsam-like scent when stems are crushed or broken.

Scientific name
Othonna cheirifolia
An evergreen perennial, often forming a woody base with alternate silvery-green, flattened leaves. Gold aster flowers are carried on stem tips from winter into spring followed by fuzzy, white seed heads.

Scientific name
Artemisia tridentata
Big sagebrush are tall, rounded shrubs with wedge-shaped leaves with 3-5 teeth at the tips. They have a strong turpentine-like odor and small, inconspicuous flowers.

Scientific name
Rudbeckia fulgida
Also Known As
Orange coneflower
A common perennial growing up to 47 inches tall with bright yellow, daisy-like composite flower heads, often up to 2.5 inches across.

Scientific name
Gaillardia aristata
Also Known As
Common gaillardia
Yellow ray flowers with red bases and a dark red globe of disk flowers. Plants can be up to 12 in tall. Found in grasslands, woods, and open areas.

Scientific name
Artemisia californica
A highly fragrant, dense rounded evergreen shrub up to 1.8 m (6 ft) tall and with dense branched threadlike leaves. Heads of yellow flowers often form dense spikes at the tips of stems.

Scientific name
Encelia californica
Also Known As
California brittlebush
A broad rounded evergreen shrub with a single large yellow sunflower at the tips of branches with many slender brittle branches extending from a woody base. The diamond-shaped, silvery-green leaves are scattered along upper portions of stems. The leaves turn whitish with age. Each large yellow sunflower is actually a dense cluster of many small flowers that contains two types of flowers (ray flowers and disk flowers).

Scientific name
Solidago canadensis
Canada goldenrod has many tiny yellow flowers in terminal clusters (all the flowers are at the top of the plant). It can grow 1 to 2 ft in height and the leaves alternate along the stem.

Scientific name
Cirsium arvense
Also Known As
California thistle, Creeping thistle
Purple to white flowers in rounded, umbrella-shaped clusters that can grow from 1.5 to 4 ft tall. It has prickly leaves and an extensive creeping rootstock.