Caulanthus anceps (syn. Guillenia lemmonii) is a species of flowering plant in the mustard family known by the common name Lemmon's mustard.
It is endemic to California, where it grows on open slopes and plains in the Central Coast Ranges and adjacent Central Valley. It can generally be found in areas with alkaline soils.
Caulanthus anceps Wikipedia
Caulanthus anceps is annual herb produces an erect, waxy-textured stem with lance-shaped leaves borne on petioles.
The inflorescence is a raceme of many fragrant flowers each with four pink-veined lavender petals. The fruit is a long silique up to 7 centimeters in length.