Diplacus angustatus is a petite annual herb growing in ground-level tufts with hair-thin stems barely a centimeter tall. Its herbage is green to reddish in color, the paired linear leaves spreading about 1 to 3 centimeters long. The tubular base of the flower is surrounded by a hairy greenish to red calyx of
sepals. The flower corolla is pale to bright pink to reddish-purple with one or more large purple spots, and sometimes yellow markings, in the throat. The trumpet-like corolla may be several centimeters long, much longer than the stem on which it is borne. Research suggests that the population size of this wildflower is positively affected by disturbance of the soil it grows in, especially by the activity of
pocket gophers; plants growing on disturbed soil have bigger flowers, fewer plant competitors, and more
pollen on their
stigmas from greater numbers of neighboring
D. angustatus. ==References==