| Island Wallflower |
| Erysimum insulare |
| Family: Brassicaceae (Mustard) |
| Flowers — color: yellow, size: 1/2", type: 4 petals |
Island Wallflower has four bright yellow petals, about 1/2" wide. Each flower has six stamens with white anthers and a pistil topped by a rounded stigma. Like the wild radish, the angles of the cross are not square. Flowers form in a capitatum: rounded cluster at the top of the stem.
Habit:
Island Wallflower is a subshrub, occasionally perennial. A single stem grows to two feet high. Thin leaves are smooth with smooth edges and attach directly to the stem. The largest leaves are two inches long. Found in partial shade in the coastal scrub or open edges in the chapparal.
A very similar wallflower, San Luis Obispo or Lompoc Wallflower, Erysium capitatum var. lompocense, is taller and has toothed leaves.