Streptanthus cordatus stem. Flowers occur at intervals along the upper stem. Each has a calyx of sepals roughly a centimeter long which begin greenish yellow and mature purple. Four purple petals emerge from the tip of each calyx. The fruit is a thin, narrow silique which may reach 14 centimeters in length or longer. Streptanthus cordatus Streptanthus cordatus is a species of flowering plant in the mustard family known by the common name heartleaf twistflower. It is native to the western United States, where it can be found in many types of sagebrush, woodland, and forest habitat. It is a perennial herb
Trifolium variegatum cluster over 2 centimeters wide. At its base is a fused involucre of bracts. Each flower has a calyx of sepals narrowing to bristle-like tips. The flower corolla is generally purplish in color and usually has a white tip. Trifolium variegatum Trifolium variegatum is a species of clover known by the common name whitetip clover. It is native to western North America from southern Alaska and British Columbia to Baja California, where it occurs in many types of habitat. "Trifolium variegatum" is a variable plant, taking many forms. It is an annual or possibly sometimes perennial herb growing prostrate to