Streptanthus barbatus bristly edges (no more than 3 centimeters long) and borne on short petioles. Leaves above these are oval to rounded and may clasp the stem. Flowers occur at intervals along the upper stem. Each has a spherical to urn-shaped calyx of keeled sepals under a centimeter long with curving petals barely emerging from the tip. The calyx of sepals is whitish, darkening purple in maturity. The petals are purple. The fruit is a long, flat, curving silique which may be 7 centimeters in length. Streptanthus barbatus Streptanthus barbatus is a species of flowering plant in the mustard family known by
Cliffortia have arisen at four independent occasions. Trimerous flowers have three sepals of variable size, and in male flowers six to many stamens. Tetramerous flowers have four sepals of 5 mm long at most and either four or eight stamens. In female flowers the sepals are united at their base to form a calyx tube, and have one or two styles, that are finely divided like an ostridge feather. One or two achenes may develop in each flower, within the inflating calyx. The first who mentioned species that are currently assigned to "Cliffortia" was Leonard Plukenet in 1696. Names published before