A showy plant with a large terminal cluster of four-petaled flowers, it
is frequently called “desert wallflower.” When growing under shrubs it
often extends its stems 2 feet or more to reach up into the sunshine.
Usually blossoming in March, some plants may be found blooming at almost
any time during the summer to as late as September.
_Erysimum capitatum_ Mustard family
[Illustration: WESTERN-WALLFLOWER]