About Collinsia tinctoria Hartw. ex Benth.
Collinsia tinctoria Hartw. ex Benth. is an annual herb that grows a sturdy, erect stem reaching up to approximately 60 centimeters in height. Its oppositely arranged leaves are triangular lance-shaped, sometimes with toothed edges, and have hairy undersides. The inflorescence is made up of a series of widely spaced, dense whorls of flowers. Each whorl forms a crowded ring of flowers borne on erect pedicels. Each flower has five elongated sepals with rounded tips, and the corolla angles sharply downward from the calyx mouth. The corolla can come in several different colors, ranging from white to yellow to deep lavender; it may also be mottled or speckled, with a tinted throat. The inflorescence and some flower parts are glandular and covered in hairs.