About Plagiobothrys collinus (Phil.) I.M.Johnst.
Plagiobothrys collinus is an annual herb that produces stems that are either spreading or erect, and grow between 10 and 40 centimetres (3.9–15.7 in) long. Leaves located along the stem are 1 to 4 centimeters long. Lower leaves are oppositely arranged, while upper leaves are alternately arranged. The entire above-ground herbage of the plant is covered in a mix of fine and rough hairs. The inflorescence is made up of a long, widely spaced sequence of tiny flowers. Each flower has a five-lobed white corolla that measures no more than 7 millimeters across, and can be as small as 1 millimeter wide. Its blooming period runs from February through May. The fruit it produces is a very small nutlet that has angular cross-ribs, which can only be seen clearly when magnified.
This annual plant is native to California, Arizona, and northern Baja California, Mexico. It grows in many types of habitat, including coastal sage scrub, chaparral, valley grassland, and open areas within oak woodland.
