Flowers of collomia debilis
are variable in color; they may be pure white, deep pink, pale blue, or intermediate shades. They have a funnel-shaped corolla, up to 1.3 inches in length, opening to five short, rounded lobes. The inside of the corolla is lighter in color, often streaked with darker lines. Five stamens, attached at the same level though usually somewhat different in length, project a little way beyond the corolla lobes. Anthers are blue.
Flowers form singly or (usually) in small clusters at the stem tips, and are subtended by leaf-like bracts. Flowers are essentially stemless.
The plant is found in rocky places in the high mountains, the stems often partly hidden by rocks, with just the flowers and uppermost leaves visible.