Bristly oxtongue

Bristly oxtongue is an erect winter and/or summer annual or biennial broadleaf distributed throughout California, except for in the deserts and the Great Basin, up to 1500 feet (450 m). It inhabits agricultural land and other disturbed areas and is particularly troublesome in coastal area orchards.

Crop fields, orchards, vineyards, gardens, landscaped areas, yards, pasture, roadsides and other disturbed, open areas.

The cotyledons (seed leaves) are broadly stalked, oval to egg shaped, and hairless. The first true leaves are more closley egg shaped and are covered with coarse, barbed and bristly hairs, which arise from blisterlike swellings. Leaves are alternate to one another along the stem. Later leaves are similar to the first leaf but are increasingly larger.