Erysimum asperum
Rough Wallflower from The Dalles Mountain summit, northeast of the Dallesport, WA.....May 1995.
Photo at right of Rough Wallflower from The Dalles Mountain summit, northeast of the Dallesport, WA.....May 1995.
2. The leaves are numerous on the stems, and are long and thin, often with wavy or toothed edges.
3. The flowers are typical for mustards. There are 4 petals, which look like an X or cross when viewed from above. The petals are either a bright yellow or yellowish-orange.
4. After pollination, the petals fall off, and a long, thin seed pod elongates out of the flower.
2. Many domestic wallflowers are sold for use in home gardens.