Description
Common blue-cup is a small annual herb that can reach up to 3 dm high but is often smaller. Its sparsely hairy to glabrous leaves are strap-shaped and mostly less than 15 mm long, with broadly toothed margins. Flowers are borne singly, appearing to come from the axils of upper leaves. The 5-lobed, deep blue corolla is vase-shaped, borne on top of the inferior ovary and shorter than the calyx lobes, which are as long as the leaves. Fruits are cigar-shaped, prominently ribbed capsules up to 15 mm long.
Habitat
This species is found in chaparral, oak woodlands, and open, dry areas in valleys and foothills, (Wildflower Center, 2021).