Erysimum franciscanum, commonly known as the Franciscan wallflower or San Francisco wallflower, is a plant endemic to the northern California coast, from Sonoma to Santa Cruz Counties.
[1][2] The flowers are cream-colored to yellow, with four sepals and four petals arranged in a cross shape, as is characteristic of the Brassicaceae.
[4] The plant prefers open scrubby areas with a fair amount of sunlight, but can flourish on a range of soils including disintegrating serpentine, gravelly and sandy soils.
[2] Although not formally recognized as endangered, the Franciscan wallflower has a limited, discontinuous distribution.
It is monitored at the Presidio of San Francisco, which was also its type locality.